jdk-sandbox: comparison jdk/src/share/classes/java/sql/DatabaseMetaData.java

equal deleted inserted replaced

-:fd16c54261b3
+:90ce3da70b43
+/*
+* Copyright 1996-2006 Sun Microsystems, Inc.  All Rights Reserved.
+* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+*
+* This code is free software; you can redistribute it and/or modify it
+* under the terms of the GNU General Public License version 2 only, as
+* published by the Free Software Foundation.  Sun designates this
+* particular file as subject to the "Classpath" exception as provided
+* by Sun in the LICENSE file that accompanied this code.
+*
+* This code is distributed in the hope that it will be useful, but WITHOUT
+* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+* FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+* version 2 for more details (a copy is included in the LICENSE file that
+* accompanied this code).
+*
+* You should have received a copy of the GNU General Public License version
+* 2 along with this work; if not, write to the Free Software Foundation,
+* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+*
+* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+* CA 95054 USA or visit www.sun.com if you need additional information or
+* have any questions.
+*/
+package java.sql;
+/**
+* Comprehensive information about the database as a whole.
+* <P>
+* This interface is implemented by driver vendors to let users know the capabilities
+* of a Database Management System (DBMS) in combination with
+* the driver based on JDBC<sup><font size=-2>TM</font></sup> technology
+* ("JDBC driver") that is used with it.  Different relational DBMSs often support
+* different features, implement features in different ways, and use different
+* data types.  In addition, a driver may implement a feature on top of what the
+* DBMS offers.  Information returned by methods in this interface applies
+* to the capabilities of a particular driver and a particular DBMS working
+* together. Note that as used in this documentation, the term "database" is
+* used generically to refer to both the driver and DBMS.
+* <P>
+* A user for this interface is commonly a tool that needs to discover how to
+* deal with the underlying DBMS.  This is especially true for applications
+* that are intended to be used with more than one DBMS. For example, a tool might use the method
+* <code>getTypeInfo</code> to find out what data types can be used in a
+* <code>CREATE TABLE</code> statement.  Or a user might call the method
+* <code>supportsCorrelatedSubqueries</code> to see if it is possible to use
+* a correlated subquery or <code>supportsBatchUpdates</code> to see if it is
+* possible to use batch updates.
+* <P>
+* Some <code>DatabaseMetaData</code> methods return lists of information
+* in the form of <code>ResultSet</code> objects.
+* Regular <code>ResultSet</code> methods, such as
+* <code>getString</code> and <code>getInt</code>, can be used
+* to retrieve the data from these <code>ResultSet</code> objects.  If
+* a given form of metadata is not available, an empty <code>ResultSet</code>
+* will be returned. Additional columns beyond the columns defined to be
+* returned by the <code>ResultSet</code> object for a given method
+* can be defined by the JDBC driver vendor and must be accessed
+* by their <B>column label</B>.
+* <P>
+* Some <code>DatabaseMetaData</code> methods take arguments that are
+* String patterns.  These arguments all have names such as fooPattern.
+* Within a pattern String, "%" means match any substring of 0 or more
+* characters, and "_" means match any one character. Only metadata
+* entries matching the search pattern are returned. If a search pattern
+* argument is set to <code>null</code>, that argument's criterion will
+* be dropped from the search.
+* <P>
+*/
+public interface DatabaseMetaData extends Wrapper {
+//----------------------------------------------------------------------
+// First, a variety of minor information about the target database.
+/**
+* Retrieves whether the current user can call all the procedures
+* returned by the method <code>getProcedures</code>.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean allProceduresAreCallable() throws SQLException;
+/**
+* Retrieves whether the current user can use all the tables returned
+* by the method <code>getTables</code> in a <code>SELECT</code>
+* statement.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean allTablesAreSelectable() throws SQLException;
+/**
+* Retrieves the URL for this DBMS.
+*
+* @return the URL for this DBMS or <code>null</code> if it cannot be
+*          generated
+* @exception SQLException if a database access error occurs
+*/
+String getURL() throws SQLException;
+/**
+* Retrieves the user name as known to this database.
+*
+* @return the database user name
+* @exception SQLException if a database access error occurs
+*/
+String getUserName() throws SQLException;
+/**
+* Retrieves whether this database is in read-only mode.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean isReadOnly() throws SQLException;
+/**
+* Retrieves whether <code>NULL</code> values are sorted high.
+* Sorted high means that <code>NULL</code> values
+* sort higher than any other value in a domain.  In an ascending order,
+* if this method returns <code>true</code>,  <code>NULL</code> values
+* will appear at the end. By contrast, the method
+* <code>nullsAreSortedAtEnd</code> indicates whether <code>NULL</code> values
+* are sorted at the end regardless of sort order.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean nullsAreSortedHigh() throws SQLException;
+/**
+* Retrieves whether <code>NULL</code> values are sorted low.
+* Sorted low means that <code>NULL</code> values
+* sort lower than any other value in a domain.  In an ascending order,
+* if this method returns <code>true</code>,  <code>NULL</code> values
+* will appear at the beginning. By contrast, the method
+* <code>nullsAreSortedAtStart</code> indicates whether <code>NULL</code> values
+* are sorted at the beginning regardless of sort order.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean nullsAreSortedLow() throws SQLException;
+/**
+* Retrieves whether <code>NULL</code> values are sorted at the start regardless
+* of sort order.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean nullsAreSortedAtStart() throws SQLException;
+/**
+* Retrieves whether <code>NULL</code> values are sorted at the end regardless of
+* sort order.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean nullsAreSortedAtEnd() throws SQLException;
+/**
+* Retrieves the name of this database product.
+*
+* @return database product name
+* @exception SQLException if a database access error occurs
+*/
+String getDatabaseProductName() throws SQLException;
+/**
+* Retrieves the version number of this database product.
+*
+* @return database version number
+* @exception SQLException if a database access error occurs
+*/
+String getDatabaseProductVersion() throws SQLException;
+/**
+* Retrieves the name of this JDBC driver.
+*
+* @return JDBC driver name
+* @exception SQLException if a database access error occurs
+*/
+String getDriverName() throws SQLException;
+/**
+* Retrieves the version number of this JDBC driver as a <code>String</code>.
+*
+* @return JDBC driver version
+* @exception SQLException if a database access error occurs
+*/
+String getDriverVersion() throws SQLException;
+/**
+* Retrieves this JDBC driver's major version number.
+*
+* @return JDBC driver major version
+*/
+int getDriverMajorVersion();
+/**
+* Retrieves this JDBC driver's minor version number.
+*
+* @return JDBC driver minor version number
+*/
+int getDriverMinorVersion();
+/**
+* Retrieves whether this database stores tables in a local file.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean usesLocalFiles() throws SQLException;
+/**
+* Retrieves whether this database uses a file for each table.
+*
+* @return <code>true</code> if this database uses a local file for each table;
+*         <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean usesLocalFilePerTable() throws SQLException;
+/**
+* Retrieves whether this database treats mixed case unquoted SQL identifiers as
+* case sensitive and as a result stores them in mixed case.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsMixedCaseIdentifiers() throws SQLException;
+/**
+* Retrieves whether this database treats mixed case unquoted SQL identifiers as
+* case insensitive and stores them in upper case.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean storesUpperCaseIdentifiers() throws SQLException;
+/**
+* Retrieves whether this database treats mixed case unquoted SQL identifiers as
+* case insensitive and stores them in lower case.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean storesLowerCaseIdentifiers() throws SQLException;
+/**
+* Retrieves whether this database treats mixed case unquoted SQL identifiers as
+* case insensitive and stores them in mixed case.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean storesMixedCaseIdentifiers() throws SQLException;
+/**
+* Retrieves whether this database treats mixed case quoted SQL identifiers as
+* case sensitive and as a result stores them in mixed case.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsMixedCaseQuotedIdentifiers() throws SQLException;
+/**
+* Retrieves whether this database treats mixed case quoted SQL identifiers as
+* case insensitive and stores them in upper case.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean storesUpperCaseQuotedIdentifiers() throws SQLException;
+/**
+* Retrieves whether this database treats mixed case quoted SQL identifiers as
+* case insensitive and stores them in lower case.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean storesLowerCaseQuotedIdentifiers() throws SQLException;
+/**
+* Retrieves whether this database treats mixed case quoted SQL identifiers as
+* case insensitive and stores them in mixed case.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean storesMixedCaseQuotedIdentifiers() throws SQLException;
+/**
+* Retrieves the string used to quote SQL identifiers.
+* This method returns a space " " if identifier quoting is not supported.
+*
+* @return the quoting string or a space if quoting is not supported
+* @exception SQLException if a database access error occurs
+*/
+String getIdentifierQuoteString() throws SQLException;
+/**
+* Retrieves a comma-separated list of all of this database's SQL keywords
+* that are NOT also SQL:2003 keywords.
+*
+* @return the list of this database's keywords that are not also
+*         SQL:2003 keywords
+* @exception SQLException if a database access error occurs
+*/
+String getSQLKeywords() throws SQLException;
+/**
+* Retrieves a comma-separated list of math functions available with
+* this database.  These are the Open /Open CLI math function names used in
+* the JDBC function escape clause.
+*
+* @return the list of math functions supported by this database
+* @exception SQLException if a database access error occurs
+*/
+String getNumericFunctions() throws SQLException;
+/**
+* Retrieves a comma-separated list of string functions available with
+* this database.  These are the  Open Group CLI string function names used
+* in the JDBC function escape clause.
+*
+* @return the list of string functions supported by this database
+* @exception SQLException if a database access error occurs
+*/
+String getStringFunctions() throws SQLException;
+/**
+* Retrieves a comma-separated list of system functions available with
+* this database.  These are the  Open Group CLI system function names used
+* in the JDBC function escape clause.
+*
+* @return a list of system functions supported by this database
+* @exception SQLException if a database access error occurs
+*/
+String getSystemFunctions() throws SQLException;
+/**
+* Retrieves a comma-separated list of the time and date functions available
+* with this database.
+*
+* @return the list of time and date functions supported by this database
+* @exception SQLException if a database access error occurs
+*/
+String getTimeDateFunctions() throws SQLException;
+/**
+* Retrieves the string that can be used to escape wildcard characters.
+* This is the string that can be used to escape '_' or '%' in
+* the catalog search parameters that are a pattern (and therefore use one
+* of the wildcard characters).
+*
+* <P>The '_' character represents any single character;
+* the '%' character represents any sequence of zero or
+* more characters.
+*
+* @return the string used to escape wildcard characters
+* @exception SQLException if a database access error occurs
+*/
+String getSearchStringEscape() throws SQLException;
+/**
+* Retrieves all the "extra" characters that can be used in unquoted
+* identifier names (those beyond a-z, A-Z, 0-9 and _).
+*
+* @return the string containing the extra characters
+* @exception SQLException if a database access error occurs
+*/
+String getExtraNameCharacters() throws SQLException;
+//--------------------------------------------------------------------
+// Functions describing which features are supported.
+/**
+* Retrieves whether this database supports <code>ALTER TABLE</code>
+* with add column.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsAlterTableWithAddColumn() throws SQLException;
+/**
+* Retrieves whether this database supports <code>ALTER TABLE</code>
+* with drop column.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsAlterTableWithDropColumn() throws SQLException;
+/**
+* Retrieves whether this database supports column aliasing.
+*
+* <P>If so, the SQL AS clause can be used to provide names for
+* computed columns or to provide alias names for columns as
+* required.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsColumnAliasing() throws SQLException;
+/**
+* Retrieves whether this database supports concatenations between
+* <code>NULL</code> and non-<code>NULL</code> values being
+* <code>NULL</code>.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean nullPlusNonNullIsNull() throws SQLException;
+/**
+* Retrieves whether this database supports the JDBC scalar function
+* <code>CONVERT</code> for the conversion of one JDBC type to another.
+* The JDBC types are the generic SQL data types defined
+* in <code>java.sql.Types</code>.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsConvert() throws SQLException;
+/**
+* Retrieves whether this database supports the JDBC scalar function
+* <code>CONVERT</code> for conversions between the JDBC types <i>fromType</i>
+* and <i>toType</i>.  The JDBC types are the generic SQL data types defined
+* in <code>java.sql.Types</code>.
+*
+* @param fromType the type to convert from; one of the type codes from
+*        the class <code>java.sql.Types</code>
+* @param toType the type to convert to; one of the type codes from
+*        the class <code>java.sql.Types</code>
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+* @see Types
+*/
+boolean supportsConvert(int fromType, int toType) throws SQLException;
+/**
+* Retrieves whether this database supports table correlation names.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsTableCorrelationNames() throws SQLException;
+/**
+* Retrieves whether, when table correlation names are supported, they
+* are restricted to being different from the names of the tables.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsDifferentTableCorrelationNames() throws SQLException;
+/**
+* Retrieves whether this database supports expressions in
+* <code>ORDER BY</code> lists.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsExpressionsInOrderBy() throws SQLException;
+/**
+* Retrieves whether this database supports using a column that is
+* not in the <code>SELECT</code> statement in an
+* <code>ORDER BY</code> clause.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsOrderByUnrelated() throws SQLException;
+/**
+* Retrieves whether this database supports some form of
+* <code>GROUP BY</code> clause.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsGroupBy() throws SQLException;
+/**
+* Retrieves whether this database supports using a column that is
+* not in the <code>SELECT</code> statement in a
+* <code>GROUP BY</code> clause.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsGroupByUnrelated() throws SQLException;
+/**
+* Retrieves whether this database supports using columns not included in
+* the <code>SELECT</code> statement in a <code>GROUP BY</code> clause
+* provided that all of the columns in the <code>SELECT</code> statement
+* are included in the <code>GROUP BY</code> clause.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsGroupByBeyondSelect() throws SQLException;
+/**
+* Retrieves whether this database supports specifying a
+* <code>LIKE</code> escape clause.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsLikeEscapeClause() throws SQLException;
+/**
+* Retrieves whether this database supports getting multiple
+* <code>ResultSet</code> objects from a single call to the
+* method <code>execute</code>.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsMultipleResultSets() throws SQLException;
+/**
+* Retrieves whether this database allows having multiple
+* transactions open at once (on different connections).
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsMultipleTransactions() throws SQLException;
+/**
+* Retrieves whether columns in this database may be defined as non-nullable.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsNonNullableColumns() throws SQLException;
+/**
+* Retrieves whether this database supports the ODBC Minimum SQL grammar.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsMinimumSQLGrammar() throws SQLException;
+/**
+* Retrieves whether this database supports the ODBC Core SQL grammar.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsCoreSQLGrammar() throws SQLException;
+/**
+* Retrieves whether this database supports the ODBC Extended SQL grammar.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsExtendedSQLGrammar() throws SQLException;
+/**
+* Retrieves whether this database supports the ANSI92 entry level SQL
+* grammar.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsANSI92EntryLevelSQL() throws SQLException;
+/**
+* Retrieves whether this database supports the ANSI92 intermediate SQL grammar supported.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsANSI92IntermediateSQL() throws SQLException;
+/**
+* Retrieves whether this database supports the ANSI92 full SQL grammar supported.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsANSI92FullSQL() throws SQLException;
+/**
+* Retrieves whether this database supports the SQL Integrity
+* Enhancement Facility.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsIntegrityEnhancementFacility() throws SQLException;
+/**
+* Retrieves whether this database supports some form of outer join.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsOuterJoins() throws SQLException;
+/**
+* Retrieves whether this database supports full nested outer joins.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsFullOuterJoins() throws SQLException;
+/**
+* Retrieves whether this database provides limited support for outer
+* joins.  (This will be <code>true</code> if the method
+* <code>supportsFullOuterJoins</code> returns <code>true</code>).
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsLimitedOuterJoins() throws SQLException;
+/**
+* Retrieves the database vendor's preferred term for "schema".
+*
+* @return the vendor term for "schema"
+* @exception SQLException if a database access error occurs
+*/
+String getSchemaTerm() throws SQLException;
+/**
+* Retrieves the database vendor's preferred term for "procedure".
+*
+* @return the vendor term for "procedure"
+* @exception SQLException if a database access error occurs
+*/
+String getProcedureTerm() throws SQLException;
+/**
+* Retrieves the database vendor's preferred term for "catalog".
+*
+* @return the vendor term for "catalog"
+* @exception SQLException if a database access error occurs
+*/
+String getCatalogTerm() throws SQLException;
+/**
+* Retrieves whether a catalog appears at the start of a fully qualified
+* table name.  If not, the catalog appears at the end.
+*
+* @return <code>true</code> if the catalog name appears at the beginning
+*         of a fully qualified table name; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean isCatalogAtStart() throws SQLException;
+/**
+* Retrieves the <code>String</code> that this database uses as the
+* separator between a catalog and table name.
+*
+* @return the separator string
+* @exception SQLException if a database access error occurs
+*/
+String getCatalogSeparator() throws SQLException;
+/**
+* Retrieves whether a schema name can be used in a data manipulation statement.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsSchemasInDataManipulation() throws SQLException;
+/**
+* Retrieves whether a schema name can be used in a procedure call statement.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsSchemasInProcedureCalls() throws SQLException;
+/**
+* Retrieves whether a schema name can be used in a table definition statement.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsSchemasInTableDefinitions() throws SQLException;
+/**
+* Retrieves whether a schema name can be used in an index definition statement.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsSchemasInIndexDefinitions() throws SQLException;
+/**
+* Retrieves whether a schema name can be used in a privilege definition statement.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsSchemasInPrivilegeDefinitions() throws SQLException;
+/**
+* Retrieves whether a catalog name can be used in a data manipulation statement.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsCatalogsInDataManipulation() throws SQLException;
+/**
+* Retrieves whether a catalog name can be used in a procedure call statement.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsCatalogsInProcedureCalls() throws SQLException;
+/**
+* Retrieves whether a catalog name can be used in a table definition statement.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsCatalogsInTableDefinitions() throws SQLException;
+/**
+* Retrieves whether a catalog name can be used in an index definition statement.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsCatalogsInIndexDefinitions() throws SQLException;
+/**
+* Retrieves whether a catalog name can be used in a privilege definition statement.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsCatalogsInPrivilegeDefinitions() throws SQLException;
+/**
+* Retrieves whether this database supports positioned <code>DELETE</code>
+* statements.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsPositionedDelete() throws SQLException;
+/**
+* Retrieves whether this database supports positioned <code>UPDATE</code>
+* statements.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsPositionedUpdate() throws SQLException;
+/**
+* Retrieves whether this database supports <code>SELECT FOR UPDATE</code>
+* statements.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsSelectForUpdate() throws SQLException;
+/**
+* Retrieves whether this database supports stored procedure calls
+* that use the stored procedure escape syntax.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsStoredProcedures() throws SQLException;
+/**
+* Retrieves whether this database supports subqueries in comparison
+* expressions.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsSubqueriesInComparisons() throws SQLException;
+/**
+* Retrieves whether this database supports subqueries in
+* <code>EXISTS</code> expressions.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsSubqueriesInExists() throws SQLException;
+/**
+* Retrieves whether this database supports subqueries in
+* <code>IN</code> expressions.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsSubqueriesInIns() throws SQLException;
+/**
+* Retrieves whether this database supports subqueries in quantified
+* expressions.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsSubqueriesInQuantifieds() throws SQLException;
+/**
+* Retrieves whether this database supports correlated subqueries.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsCorrelatedSubqueries() throws SQLException;
+/**
+* Retrieves whether this database supports SQL <code>UNION</code>.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsUnion() throws SQLException;
+/**
+* Retrieves whether this database supports SQL <code>UNION ALL</code>.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsUnionAll() throws SQLException;
+/**
+* Retrieves whether this database supports keeping cursors open
+* across commits.
+*
+* @return <code>true</code> if cursors always remain open;
+*       <code>false</code> if they might not remain open
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsOpenCursorsAcrossCommit() throws SQLException;
+/**
+* Retrieves whether this database supports keeping cursors open
+* across rollbacks.
+*
+* @return <code>true</code> if cursors always remain open;
+*       <code>false</code> if they might not remain open
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsOpenCursorsAcrossRollback() throws SQLException;
+/**
+* Retrieves whether this database supports keeping statements open
+* across commits.
+*
+* @return <code>true</code> if statements always remain open;
+*       <code>false</code> if they might not remain open
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsOpenStatementsAcrossCommit() throws SQLException;
+/**
+* Retrieves whether this database supports keeping statements open
+* across rollbacks.
+*
+* @return <code>true</code> if statements always remain open;
+*       <code>false</code> if they might not remain open
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsOpenStatementsAcrossRollback() throws SQLException;
+//----------------------------------------------------------------------
+// The following group of methods exposes various limitations
+// based on the target database with the current driver.
+// Unless otherwise specified, a result of zero means there is no
+// limit, or the limit is not known.
+/**
+* Retrieves the maximum number of hex characters this database allows in an
+* inline binary literal.
+*
+* @return max the maximum length (in hex characters) for a binary literal;
+*      a result of zero means that there is no limit or the limit
+*      is not known
+* @exception SQLException if a database access error occurs
+*/
+int getMaxBinaryLiteralLength() throws SQLException;
+/**
+* Retrieves the maximum number of characters this database allows
+* for a character literal.
+*
+* @return the maximum number of characters allowed for a character literal;
+*      a result of zero means that there is no limit or the limit is
+*      not known
+* @exception SQLException if a database access error occurs
+*/
+int getMaxCharLiteralLength() throws SQLException;
+/**
+* Retrieves the maximum number of characters this database allows
+* for a column name.
+*
+* @return the maximum number of characters allowed for a column name;
+*      a result of zero means that there is no limit or the limit
+*      is not known
+* @exception SQLException if a database access error occurs
+*/
+int getMaxColumnNameLength() throws SQLException;
+/**
+* Retrieves the maximum number of columns this database allows in a
+* <code>GROUP BY</code> clause.
+*
+* @return the maximum number of columns allowed;
+*      a result of zero means that there is no limit or the limit
+*      is not known
+* @exception SQLException if a database access error occurs
+*/
+int getMaxColumnsInGroupBy() throws SQLException;
+/**
+* Retrieves the maximum number of columns this database allows in an index.
+*
+* @return the maximum number of columns allowed;
+*      a result of zero means that there is no limit or the limit
+*      is not known
+* @exception SQLException if a database access error occurs
+*/
+int getMaxColumnsInIndex() throws SQLException;
+/**
+* Retrieves the maximum number of columns this database allows in an
+* <code>ORDER BY</code> clause.
+*
+* @return the maximum number of columns allowed;
+*      a result of zero means that there is no limit or the limit
+*      is not known
+* @exception SQLException if a database access error occurs
+*/
+int getMaxColumnsInOrderBy() throws SQLException;
+/**
+* Retrieves the maximum number of columns this database allows in a
+* <code>SELECT</code> list.
+*
+* @return the maximum number of columns allowed;
+*      a result of zero means that there is no limit or the limit
+*      is not known
+* @exception SQLException if a database access error occurs
+*/
+int getMaxColumnsInSelect() throws SQLException;
+/**
+* Retrieves the maximum number of columns this database allows in a table.
+*
+* @return the maximum number of columns allowed;
+*      a result of zero means that there is no limit or the limit
+*      is not known
+* @exception SQLException if a database access error occurs
+*/
+int getMaxColumnsInTable() throws SQLException;
+/**
+* Retrieves the maximum number of concurrent connections to this
+* database that are possible.
+*
+* @return the maximum number of active connections possible at one time;
+*      a result of zero means that there is no limit or the limit
+*      is not known
+* @exception SQLException if a database access error occurs
+*/
+int getMaxConnections() throws SQLException;
+/**
+* Retrieves the maximum number of characters that this database allows in a
+* cursor name.
+*
+* @return the maximum number of characters allowed in a cursor name;
+*      a result of zero means that there is no limit or the limit
+*      is not known
+* @exception SQLException if a database access error occurs
+*/
+int getMaxCursorNameLength() throws SQLException;
+/**
+* Retrieves the maximum number of bytes this database allows for an
+* index, including all of the parts of the index.
+*
+* @return the maximum number of bytes allowed; this limit includes the
+*      composite of all the constituent parts of the index;
+*      a result of zero means that there is no limit or the limit
+*      is not known
+* @exception SQLException if a database access error occurs
+*/
+int getMaxIndexLength() throws SQLException;
+/**
+* Retrieves the maximum number of characters that this database allows in a
+* schema name.
+*
+* @return the maximum number of characters allowed in a schema name;
+*      a result of zero means that there is no limit or the limit
+*      is not known
+* @exception SQLException if a database access error occurs
+*/
+int getMaxSchemaNameLength() throws SQLException;
+/**
+* Retrieves the maximum number of characters that this database allows in a
+* procedure name.
+*
+* @return the maximum number of characters allowed in a procedure name;
+*      a result of zero means that there is no limit or the limit
+*      is not known
+* @exception SQLException if a database access error occurs
+*/
+int getMaxProcedureNameLength() throws SQLException;
+/**
+* Retrieves the maximum number of characters that this database allows in a
+* catalog name.
+*
+* @return the maximum number of characters allowed in a catalog name;
+*      a result of zero means that there is no limit or the limit
+*      is not known
+* @exception SQLException if a database access error occurs
+*/
+int getMaxCatalogNameLength() throws SQLException;
+/**
+* Retrieves the maximum number of bytes this database allows in
+* a single row.
+*
+* @return the maximum number of bytes allowed for a row; a result of
+*         zero means that there is no limit or the limit is not known
+* @exception SQLException if a database access error occurs
+*/
+int getMaxRowSize() throws SQLException;
+/**
+* Retrieves whether the return value for the method
+* <code>getMaxRowSize</code> includes the SQL data types
+* <code>LONGVARCHAR</code> and <code>LONGVARBINARY</code>.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean doesMaxRowSizeIncludeBlobs() throws SQLException;
+/**
+* Retrieves the maximum number of characters this database allows in
+* an SQL statement.
+*
+* @return the maximum number of characters allowed for an SQL statement;
+*      a result of zero means that there is no limit or the limit
+*      is not known
+* @exception SQLException if a database access error occurs
+*/
+int getMaxStatementLength() throws SQLException;
+/**
+* Retrieves the maximum number of active statements to this database
+* that can be open at the same time.
+*
+* @return the maximum number of statements that can be open at one time;
+*      a result of zero means that there is no limit or the limit
+*      is not known
+* @exception SQLException if a database access error occurs
+*/
+int getMaxStatements() throws SQLException;
+/**
+* Retrieves the maximum number of characters this database allows in
+* a table name.
+*
+* @return the maximum number of characters allowed for a table name;
+*      a result of zero means that there is no limit or the limit
+*      is not known
+* @exception SQLException if a database access error occurs
+*/
+int getMaxTableNameLength() throws SQLException;
+/**
+* Retrieves the maximum number of tables this database allows in a
+* <code>SELECT</code> statement.
+*
+* @return the maximum number of tables allowed in a <code>SELECT</code>
+*         statement; a result of zero means that there is no limit or
+*         the limit is not known
+* @exception SQLException if a database access error occurs
+*/
+int getMaxTablesInSelect() throws SQLException;
+/**
+* Retrieves the maximum number of characters this database allows in
+* a user name.
+*
+* @return the maximum number of characters allowed for a user name;
+*      a result of zero means that there is no limit or the limit
+*      is not known
+* @exception SQLException if a database access error occurs
+*/
+int getMaxUserNameLength() throws SQLException;
+//----------------------------------------------------------------------
+/**
+* Retrieves this database's default transaction isolation level.  The
+* possible values are defined in <code>java.sql.Connection</code>.
+*
+* @return the default isolation level
+* @exception SQLException if a database access error occurs
+* @see Connection
+*/
+int getDefaultTransactionIsolation() throws SQLException;
+/**
+* Retrieves whether this database supports transactions. If not, invoking the
+* method <code>commit</code> is a noop, and the isolation level is
+* <code>TRANSACTION_NONE</code>.
+*
+* @return <code>true</code> if transactions are supported;
+*         <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsTransactions() throws SQLException;
+/**
+* Retrieves whether this database supports the given transaction isolation level.
+*
+* @param level one of the transaction isolation levels defined in
+*         <code>java.sql.Connection</code>
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+* @see Connection
+*/
+boolean supportsTransactionIsolationLevel(int level)
+throws SQLException;
+/**
+* Retrieves whether this database supports both data definition and
+* data manipulation statements within a transaction.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsDataDefinitionAndDataManipulationTransactions()
+throws SQLException;
+/**
+* Retrieves whether this database supports only data manipulation
+* statements within a transaction.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean supportsDataManipulationTransactionsOnly()
+throws SQLException;
+/**
+* Retrieves whether a data definition statement within a transaction forces
+* the transaction to commit.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean dataDefinitionCausesTransactionCommit()
+throws SQLException;
+/**
+* Retrieves whether this database ignores a data definition statement
+* within a transaction.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+*/
+boolean dataDefinitionIgnoredInTransactions()
+throws SQLException;
+/**
+* Retrieves a description of the stored procedures available in the given
+* catalog.
+* <P>
+* Only procedure descriptions matching the schema and
+* procedure name criteria are returned.  They are ordered by
+* <code>PROCEDURE_CAT</code>, <code>PROCEDURE_SCHEM</code>,
+* <code>PROCEDURE_NAME</code> and <code>SPECIFIC_ NAME</code>.
+*
+* <P>Each procedure description has the the following columns:
+*  <OL>
+*  <LI><B>PROCEDURE_CAT</B> String => procedure catalog (may be <code>null</code>)
+*  <LI><B>PROCEDURE_SCHEM</B> String => procedure schema (may be <code>null</code>)
+*  <LI><B>PROCEDURE_NAME</B> String => procedure name
+*  <LI> reserved for future use
+*  <LI> reserved for future use
+*  <LI> reserved for future use
+*  <LI><B>REMARKS</B> String => explanatory comment on the procedure
+*  <LI><B>PROCEDURE_TYPE</B> short => kind of procedure:
+*      <UL>
+*      <LI> procedureResultUnknown - Cannot determine if  a return value
+*       will be returned
+*      <LI> procedureNoResult - Does not return a return value
+*      <LI> procedureReturnsResult - Returns a return value
+*      </UL>
+*  <LI><B>SPECIFIC_NAME</B> String  => The name which uniquely identifies this
+* procedure within its schema.
+*  </OL>
+* <p>
+* A user may not have permissions to execute any of the procedures that are
+* returned by <code>getProcedures</code>
+*
+* @param catalog a catalog name; must match the catalog name as it
+*        is stored in the database; "" retrieves those without a catalog;
+*        <code>null</code> means that the catalog name should not be used to narrow
+*        the search
+* @param schemaPattern a schema name pattern; must match the schema name
+*        as it is stored in the database; "" retrieves those without a schema;
+*        <code>null</code> means that the schema name should not be used to narrow
+*        the search
+* @param procedureNamePattern a procedure name pattern; must match the
+*        procedure name as it is stored in the database
+* @return <code>ResultSet</code> - each row is a procedure description
+* @exception SQLException if a database access error occurs
+* @see #getSearchStringEscape
+*/
+ResultSet getProcedures(String catalog, String schemaPattern,
+String procedureNamePattern) throws SQLException;
+/**
+* Indicates that it is not known whether the procedure returns
+* a result.
+* <P>
+* A possible value for column <code>PROCEDURE_TYPE</code> in the
+* <code>ResultSet</code> object returned by the method
+* <code>getProcedures</code>.
+*/
+int procedureResultUnknown  = 0;
+/**
+* Indicates that the procedure does not return a result.
+* <P>
+* A possible value for column <code>PROCEDURE_TYPE</code> in the
+* <code>ResultSet</code> object returned by the method
+* <code>getProcedures</code>.
+*/
+int procedureNoResult               = 1;
+/**
+* Indicates that the procedure returns a result.
+* <P>
+* A possible value for column <code>PROCEDURE_TYPE</code> in the
+* <code>ResultSet</code> object returned by the method
+* <code>getProcedures</code>.
+*/
+int procedureReturnsResult  = 2;
+/**
+* Retrieves a description of the given catalog's stored procedure parameter
+* and result columns.
+*
+* <P>Only descriptions matching the schema, procedure and
+* parameter name criteria are returned.  They are ordered by
+* PROCEDURE_CAT, PROCEDURE_SCHEM, PROCEDURE_NAME and SPECIFIC_NAME. Within this, the return value,
+* if any, is first. Next are the parameter descriptions in call
+* order. The column descriptions follow in column number order.
+*
+* <P>Each row in the <code>ResultSet</code> is a parameter description or
+* column description with the following fields:
+*  <OL>
+*  <LI><B>PROCEDURE_CAT</B> String => procedure catalog (may be <code>null</code>)
+*  <LI><B>PROCEDURE_SCHEM</B> String => procedure schema (may be <code>null</code>)
+*  <LI><B>PROCEDURE_NAME</B> String => procedure name
+*  <LI><B>COLUMN_NAME</B> String => column/parameter name
+*  <LI><B>COLUMN_TYPE</B> Short => kind of column/parameter:
+*      <UL>
+*      <LI> procedureColumnUnknown - nobody knows
+*      <LI> procedureColumnIn - IN parameter
+*      <LI> procedureColumnInOut - INOUT parameter
+*      <LI> procedureColumnOut - OUT parameter
+*      <LI> procedureColumnReturn - procedure return value
+*      <LI> procedureColumnResult - result column in <code>ResultSet</code>
+*      </UL>
+*  <LI><B>DATA_TYPE</B> int => SQL type from java.sql.Types
+*  <LI><B>TYPE_NAME</B> String => SQL type name, for a UDT type the
+*  type name is fully qualified
+*  <LI><B>PRECISION</B> int => precision
+*  <LI><B>LENGTH</B> int => length in bytes of data
+*  <LI><B>SCALE</B> short => scale -  null is returned for data types where
+* SCALE is not applicable.
+*  <LI><B>RADIX</B> short => radix
+*  <LI><B>NULLABLE</B> short => can it contain NULL.
+*      <UL>
+*      <LI> procedureNoNulls - does not allow NULL values
+*      <LI> procedureNullable - allows NULL values
+*      <LI> procedureNullableUnknown - nullability unknown
+*      </UL>
+*  <LI><B>REMARKS</B> String => comment describing parameter/column
+*  <LI><B>COLUMN_DEF</B> String => default value for the column, which should be interpreted as a string when the value is enclosed in single quotes (may be <code>null</code>)
+*      <UL>
+*      <LI> The string NULL (not enclosed in quotes) - if NULL was specified as the default value
+*      <LI> TRUNCATE (not enclosed in quotes)        - if the specified default value cannot be represented without truncation
+*      <LI> NULL                                     - if a default value was not specified
+*      </UL>
+*  <LI><B>SQL_DATA_TYPE</B> int  => reserved for future use
+*  <LI><B>SQL_DATETIME_SUB</B> int  => reserved for future use
+*  <LI><B>CHAR_OCTET_LENGTH</B> int  => the maximum length of binary and character based columns.  For any other datatype the returned value is a
+* NULL
+*  <LI><B>ORDINAL_POSITION</B> int  => the ordinal position, starting from 1, for the input and output parameters for a procedure. A value of 0
+*is returned if this row describes the procedure's return value.  For result set columns, it is the
+*ordinal position of the column in the result set starting from 1.  If there are
+*multiple result sets, the column ordinal positions are implementation
+* defined.
+*  <LI><B>IS_NULLABLE</B> String  => ISO rules are used to determine the nullability for a column.
+*       <UL>
+*       <LI> YES           --- if the parameter can include NULLs
+*       <LI> NO            --- if the parameter cannot include NULLs
+*       <LI> empty string  --- if the nullability for the
+* parameter is unknown
+*       </UL>
+*  <LI><B>SPECIFIC_NAME</B> String  => the name which uniquely identifies this procedure within its schema.
+*  </OL>
+*
+* <P><B>Note:</B> Some databases may not return the column
+* descriptions for a procedure.
+*
+* <p>The PRECISION column represents the specified column size for the given column.
+* For numeric data, this is the maximum precision.  For character data, this is the length in characters.
+* For datetime datatypes, this is the length in characters of the String representation (assuming the
+* maximum allowed precision of the fractional seconds component). For binary data, this is the length in bytes.  For the ROWID datatype,
+* this is the length in bytes. Null is returned for data types where the
+* column size is not applicable.
+* @param catalog a catalog name; must match the catalog name as it
+*        is stored in the database; "" retrieves those without a catalog;
+*        <code>null</code> means that the catalog name should not be used to narrow
+*        the search
+* @param schemaPattern a schema name pattern; must match the schema name
+*        as it is stored in the database; "" retrieves those without a schema;
+*        <code>null</code> means that the schema name should not be used to narrow
+*        the search
+* @param procedureNamePattern a procedure name pattern; must match the
+*        procedure name as it is stored in the database
+* @param columnNamePattern a column name pattern; must match the column name
+*        as it is stored in the database
+* @return <code>ResultSet</code> - each row describes a stored procedure parameter or
+*      column
+* @exception SQLException if a database access error occurs
+* @see #getSearchStringEscape
+*/
+ResultSet getProcedureColumns(String catalog,
+String schemaPattern,
+String procedureNamePattern,
+String columnNamePattern) throws SQLException;
+/**
+* Indicates that type of the column is unknown.
+* <P>
+* A possible value for the column
+* <code>COLUMN_TYPE</code>
+* in the <code>ResultSet</code>
+* returned by the method <code>getProcedureColumns</code>.
+*/
+int procedureColumnUnknown = 0;
+/**
+* Indicates that the column stores IN parameters.
+* <P>
+* A possible value for the column
+* <code>COLUMN_TYPE</code>
+* in the <code>ResultSet</code>
+* returned by the method <code>getProcedureColumns</code>.
+*/
+int procedureColumnIn = 1;
+/**
+* Indicates that the column stores INOUT parameters.
+* <P>
+* A possible value for the column
+* <code>COLUMN_TYPE</code>
+* in the <code>ResultSet</code>
+* returned by the method <code>getProcedureColumns</code>.
+*/
+int procedureColumnInOut = 2;
+/**
+* Indicates that the column stores OUT parameters.
+* <P>
+* A possible value for the column
+* <code>COLUMN_TYPE</code>
+* in the <code>ResultSet</code>
+* returned by the method <code>getProcedureColumns</code>.
+*/
+int procedureColumnOut = 4;
+/**
+* Indicates that the column stores return values.
+* <P>
+* A possible value for the column
+* <code>COLUMN_TYPE</code>
+* in the <code>ResultSet</code>
+* returned by the method <code>getProcedureColumns</code>.
+*/
+int procedureColumnReturn = 5;
+/**
+* Indicates that the column stores results.
+* <P>
+* A possible value for the column
+* <code>COLUMN_TYPE</code>
+* in the <code>ResultSet</code>
+* returned by the method <code>getProcedureColumns</code>.
+*/
+int procedureColumnResult = 3;
+/**
+* Indicates that <code>NULL</code> values are not allowed.
+* <P>
+* A possible value for the column
+* <code>NULLABLE</code>
+* in the <code>ResultSet</code> object
+* returned by the method <code>getProcedureColumns</code>.
+*/
+int procedureNoNulls = 0;
+/**
+* Indicates that <code>NULL</code> values are allowed.
+* <P>
+* A possible value for the column
+* <code>NULLABLE</code>
+* in the <code>ResultSet</code> object
+* returned by the method <code>getProcedureColumns</code>.
+*/
+int procedureNullable = 1;
+/**
+* Indicates that whether <code>NULL</code> values are allowed
+* is unknown.
+* <P>
+* A possible value for the column
+* <code>NULLABLE</code>
+* in the <code>ResultSet</code> object
+* returned by the method <code>getProcedureColumns</code>.
+*/
+int procedureNullableUnknown = 2;
+/**
+* Retrieves a description of the tables available in the given catalog.
+* Only table descriptions matching the catalog, schema, table
+* name and type criteria are returned.  They are ordered by
+* <code>TABLE_TYPE</code>, <code>TABLE_CAT</code>,
+* <code>TABLE_SCHEM</code> and <code>TABLE_NAME</code>.
+* <P>
+* Each table description has the following columns:
+*  <OL>
+*  <LI><B>TABLE_CAT</B> String => table catalog (may be <code>null</code>)
+*  <LI><B>TABLE_SCHEM</B> String => table schema (may be <code>null</code>)
+*  <LI><B>TABLE_NAME</B> String => table name
+*  <LI><B>TABLE_TYPE</B> String => table type.  Typical types are "TABLE",
+*                  "VIEW", "SYSTEM TABLE", "GLOBAL TEMPORARY",
+*                  "LOCAL TEMPORARY", "ALIAS", "SYNONYM".
+*  <LI><B>REMARKS</B> String => explanatory comment on the table
+*  <LI><B>TYPE_CAT</B> String => the types catalog (may be <code>null</code>)
+*  <LI><B>TYPE_SCHEM</B> String => the types schema (may be <code>null</code>)
+*  <LI><B>TYPE_NAME</B> String => type name (may be <code>null</code>)
+*  <LI><B>SELF_REFERENCING_COL_NAME</B> String => name of the designated
+*                  "identifier" column of a typed table (may be <code>null</code>)
+*  <LI><B>REF_GENERATION</B> String => specifies how values in
+*                  SELF_REFERENCING_COL_NAME are created. Values are
+*                  "SYSTEM", "USER", "DERIVED". (may be <code>null</code>)
+*  </OL>
+*
+* <P><B>Note:</B> Some databases may not return information for
+* all tables.
+*
+* @param catalog a catalog name; must match the catalog name as it
+*        is stored in the database; "" retrieves those without a catalog;
+*        <code>null</code> means that the catalog name should not be used to narrow
+*        the search
+* @param schemaPattern a schema name pattern; must match the schema name
+*        as it is stored in the database; "" retrieves those without a schema;
+*        <code>null</code> means that the schema name should not be used to narrow
+*        the search
+* @param tableNamePattern a table name pattern; must match the
+*        table name as it is stored in the database
+* @param types a list of table types, which must be from the list of table types
+*         returned from {@link #getTableTypes},to include; <code>null</code> returns
+* all types
+* @return <code>ResultSet</code> - each row is a table description
+* @exception SQLException if a database access error occurs
+* @see #getSearchStringEscape
+*/
+ResultSet getTables(String catalog, String schemaPattern,
+String tableNamePattern, String types[]) throws SQLException;
+/**
+* Retrieves the schema names available in this database.  The results
+* are ordered by <code>TABLE_CATALOG</code> and
+* <code>TABLE_SCHEM</code>.
+*
+* <P>The schema columns are:
+*  <OL>
+*  <LI><B>TABLE_SCHEM</B> String => schema name
+*  <LI><B>TABLE_CATALOG</B> String => catalog name (may be <code>null</code>)
+*  </OL>
+*
+* @return a <code>ResultSet</code> object in which each row is a
+*         schema description
+* @exception SQLException if a database access error occurs
+*
+*/
+ResultSet getSchemas() throws SQLException;
+/**
+* Retrieves the catalog names available in this database.  The results
+* are ordered by catalog name.
+*
+* <P>The catalog column is:
+*  <OL>
+*  <LI><B>TABLE_CAT</B> String => catalog name
+*  </OL>
+*
+* @return a <code>ResultSet</code> object in which each row has a
+*         single <code>String</code> column that is a catalog name
+* @exception SQLException if a database access error occurs
+*/
+ResultSet getCatalogs() throws SQLException;
+/**
+* Retrieves the table types available in this database.  The results
+* are ordered by table type.
+*
+* <P>The table type is:
+*  <OL>
+*  <LI><B>TABLE_TYPE</B> String => table type.  Typical types are "TABLE",
+*                  "VIEW", "SYSTEM TABLE", "GLOBAL TEMPORARY",
+*                  "LOCAL TEMPORARY", "ALIAS", "SYNONYM".
+*  </OL>
+*
+* @return a <code>ResultSet</code> object in which each row has a
+*         single <code>String</code> column that is a table type
+* @exception SQLException if a database access error occurs
+*/
+ResultSet getTableTypes() throws SQLException;
+/**
+* Retrieves a description of table columns available in
+* the specified catalog.
+*
+* <P>Only column descriptions matching the catalog, schema, table
+* and column name criteria are returned.  They are ordered by
+* <code>TABLE_CAT</code>,<code>TABLE_SCHEM</code>,
+* <code>TABLE_NAME</code>, and <code>ORDINAL_POSITION</code>.
+*
+* <P>Each column description has the following columns:
+*  <OL>
+*  <LI><B>TABLE_CAT</B> String => table catalog (may be <code>null</code>)
+*  <LI><B>TABLE_SCHEM</B> String => table schema (may be <code>null</code>)
+*  <LI><B>TABLE_NAME</B> String => table name
+*  <LI><B>COLUMN_NAME</B> String => column name
+*  <LI><B>DATA_TYPE</B> int => SQL type from java.sql.Types
+*  <LI><B>TYPE_NAME</B> String => Data source dependent type name,
+*  for a UDT the type name is fully qualified
+*  <LI><B>COLUMN_SIZE</B> int => column size.
+*  <LI><B>BUFFER_LENGTH</B> is not used.
+*  <LI><B>DECIMAL_DIGITS</B> int => the number of fractional digits. Null is returned for data types where
+* DECIMAL_DIGITS is not applicable.
+*  <LI><B>NUM_PREC_RADIX</B> int => Radix (typically either 10 or 2)
+*  <LI><B>NULLABLE</B> int => is NULL allowed.
+*      <UL>
+*      <LI> columnNoNulls - might not allow <code>NULL</code> values
+*      <LI> columnNullable - definitely allows <code>NULL</code> values
+*      <LI> columnNullableUnknown - nullability unknown
+*      </UL>
+*  <LI><B>REMARKS</B> String => comment describing column (may be <code>null</code>)
+*  <LI><B>COLUMN_DEF</B> String => default value for the column, which should be interpreted as a string when the value is enclosed in single quotes (may be <code>null</code>)
+*  <LI><B>SQL_DATA_TYPE</B> int => unused
+*  <LI><B>SQL_DATETIME_SUB</B> int => unused
+*  <LI><B>CHAR_OCTET_LENGTH</B> int => for char types the
+*       maximum number of bytes in the column
+*  <LI><B>ORDINAL_POSITION</B> int => index of column in table
+*      (starting at 1)
+*  <LI><B>IS_NULLABLE</B> String  => ISO rules are used to determine the nullability for a column.
+*       <UL>
+*       <LI> YES           --- if the parameter can include NULLs
+*       <LI> NO            --- if the parameter cannot include NULLs
+*       <LI> empty string  --- if the nullability for the
+* parameter is unknown
+*       </UL>
+*  <LI><B>SCOPE_CATLOG</B> String => catalog of table that is the scope
+*      of a reference attribute (<code>null</code> if DATA_TYPE isn't REF)
+*  <LI><B>SCOPE_SCHEMA</B> String => schema of table that is the scope
+*      of a reference attribute (<code>null</code> if the DATA_TYPE isn't REF)
+*  <LI><B>SCOPE_TABLE</B> String => table name that this the scope
+*      of a reference attribure (<code>null</code> if the DATA_TYPE isn't REF)
+*  <LI><B>SOURCE_DATA_TYPE</B> short => source type of a distinct type or user-generated
+*      Ref type, SQL type from java.sql.Types (<code>null</code> if DATA_TYPE
+*      isn't DISTINCT or user-generated REF)
+*   <LI><B>IS_AUTOINCREMENT</B> String  => Indicates whether this column is auto incremented
+*       <UL>
+*       <LI> YES           --- if the column is auto incremented
+*       <LI> NO            --- if the column is not auto incremented
+*       <LI> empty string  --- if it cannot be determined whether the column is auto incremented
+* parameter is unknown
+*       </UL>
+*  </OL>
+*
+* <p>The COLUMN_SIZE column the specified column size for the given column.
+* For numeric data, this is the maximum precision.  For character data, this is the length in characters.
+* For datetime datatypes, this is the length in characters of the String representation (assuming the
+* maximum allowed precision of the fractional seconds component). For binary data, this is the length in bytes.  For the ROWID datatype,
+* this is the length in bytes. Null is returned for data types where the
+* column size is not applicable.
+*
+* @param catalog a catalog name; must match the catalog name as it
+*        is stored in the database; "" retrieves those without a catalog;
+*        <code>null</code> means that the catalog name should not be used to narrow
+*        the search
+* @param schemaPattern a schema name pattern; must match the schema name
+*        as it is stored in the database; "" retrieves those without a schema;
+*        <code>null</code> means that the schema name should not be used to narrow
+*        the search
+* @param tableNamePattern a table name pattern; must match the
+*        table name as it is stored in the database
+* @param columnNamePattern a column name pattern; must match the column
+*        name as it is stored in the database
+* @return <code>ResultSet</code> - each row is a column description
+* @exception SQLException if a database access error occurs
+* @see #getSearchStringEscape
+*/
+ResultSet getColumns(String catalog, String schemaPattern,
+String tableNamePattern, String columnNamePattern)
+throws SQLException;
+/**
+* Indicates that the column might not allow <code>NULL</code> values.
+* <P>
+* A possible value for the column
+* <code>NULLABLE</code>
+* in the <code>ResultSet</code> returned by the method
+* <code>getColumns</code>.
+*/
+int columnNoNulls = 0;
+/**
+* Indicates that the column definitely allows <code>NULL</code> values.
+* <P>
+* A possible value for the column
+* <code>NULLABLE</code>
+* in the <code>ResultSet</code> returned by the method
+* <code>getColumns</code>.
+*/
+int columnNullable = 1;
+/**
+* Indicates that the nullability of columns is unknown.
+* <P>
+* A possible value for the column
+* <code>NULLABLE</code>
+* in the <code>ResultSet</code> returned by the method
+* <code>getColumns</code>.
+*/
+int columnNullableUnknown = 2;
+/**
+* Retrieves a description of the access rights for a table's columns.
+*
+* <P>Only privileges matching the column name criteria are
+* returned.  They are ordered by COLUMN_NAME and PRIVILEGE.
+*
+* <P>Each privilige description has the following columns:
+*  <OL>
+*  <LI><B>TABLE_CAT</B> String => table catalog (may be <code>null</code>)
+*  <LI><B>TABLE_SCHEM</B> String => table schema (may be <code>null</code>)
+*  <LI><B>TABLE_NAME</B> String => table name
+*  <LI><B>COLUMN_NAME</B> String => column name
+*  <LI><B>GRANTOR</B> String => grantor of access (may be <code>null</code>)
+*  <LI><B>GRANTEE</B> String => grantee of access
+*  <LI><B>PRIVILEGE</B> String => name of access (SELECT,
+*      INSERT, UPDATE, REFRENCES, ...)
+*  <LI><B>IS_GRANTABLE</B> String => "YES" if grantee is permitted
+*      to grant to others; "NO" if not; <code>null</code> if unknown
+*  </OL>
+*
+* @param catalog a catalog name; must match the catalog name as it
+*        is stored in the database; "" retrieves those without a catalog;
+*        <code>null</code> means that the catalog name should not be used to narrow
+*        the search
+* @param schema a schema name; must match the schema name as it is
+*        stored in the database; "" retrieves those without a schema;
+*        <code>null</code> means that the schema name should not be used to narrow
+*        the search
+* @param table a table name; must match the table name as it is
+*        stored in the database
+* @param columnNamePattern a column name pattern; must match the column
+*        name as it is stored in the database
+* @return <code>ResultSet</code> - each row is a column privilege description
+* @exception SQLException if a database access error occurs
+* @see #getSearchStringEscape
+*/
+ResultSet getColumnPrivileges(String catalog, String schema,
+String table, String columnNamePattern) throws SQLException;
+/**
+* Retrieves a description of the access rights for each table available
+* in a catalog. Note that a table privilege applies to one or
+* more columns in the table. It would be wrong to assume that
+* this privilege applies to all columns (this may be true for
+* some systems but is not true for all.)
+*
+* <P>Only privileges matching the schema and table name
+* criteria are returned.  They are ordered by
+* <code>TABLE_CAT</code>,
+* <code>TABLE_SCHEM</code>, <code>TABLE_NAME</code>,
+* and <code>PRIVILEGE</code>.
+*
+* <P>Each privilige description has the following columns:
+*  <OL>
+*  <LI><B>TABLE_CAT</B> String => table catalog (may be <code>null</code>)
+*  <LI><B>TABLE_SCHEM</B> String => table schema (may be <code>null</code>)
+*  <LI><B>TABLE_NAME</B> String => table name
+*  <LI><B>GRANTOR</B> String => grantor of access (may be <code>null</code>)
+*  <LI><B>GRANTEE</B> String => grantee of access
+*  <LI><B>PRIVILEGE</B> String => name of access (SELECT,
+*      INSERT, UPDATE, REFRENCES, ...)
+*  <LI><B>IS_GRANTABLE</B> String => "YES" if grantee is permitted
+*      to grant to others; "NO" if not; <code>null</code> if unknown
+*  </OL>
+*
+* @param catalog a catalog name; must match the catalog name as it
+*        is stored in the database; "" retrieves those without a catalog;
+*        <code>null</code> means that the catalog name should not be used to narrow
+*        the search
+* @param schemaPattern a schema name pattern; must match the schema name
+*        as it is stored in the database; "" retrieves those without a schema;
+*        <code>null</code> means that the schema name should not be used to narrow
+*        the search
+* @param tableNamePattern a table name pattern; must match the
+*        table name as it is stored in the database
+* @return <code>ResultSet</code> - each row is a table privilege description
+* @exception SQLException if a database access error occurs
+* @see #getSearchStringEscape
+*/
+ResultSet getTablePrivileges(String catalog, String schemaPattern,
+String tableNamePattern) throws SQLException;
+/**
+* Retrieves a description of a table's optimal set of columns that
+* uniquely identifies a row. They are ordered by SCOPE.
+*
+* <P>Each column description has the following columns:
+*  <OL>
+*  <LI><B>SCOPE</B> short => actual scope of result
+*      <UL>
+*      <LI> bestRowTemporary - very temporary, while using row
+*      <LI> bestRowTransaction - valid for remainder of current transaction
+*      <LI> bestRowSession - valid for remainder of current session
+*      </UL>
+*  <LI><B>COLUMN_NAME</B> String => column name
+*  <LI><B>DATA_TYPE</B> int => SQL data type from java.sql.Types
+*  <LI><B>TYPE_NAME</B> String => Data source dependent type name,
+*  for a UDT the type name is fully qualified
+*  <LI><B>COLUMN_SIZE</B> int => precision
+*  <LI><B>BUFFER_LENGTH</B> int => not used
+*  <LI><B>DECIMAL_DIGITS</B> short  => scale - Null is returned for data types where
+* DECIMAL_DIGITS is not applicable.
+*  <LI><B>PSEUDO_COLUMN</B> short => is this a pseudo column
+*      like an Oracle ROWID
+*      <UL>
+*      <LI> bestRowUnknown - may or may not be pseudo column
+*      <LI> bestRowNotPseudo - is NOT a pseudo column
+*      <LI> bestRowPseudo - is a pseudo column
+*      </UL>
+*  </OL>
+*
+* <p>The COLUMN_SIZE column represents the specified column size for the given column.
+* For numeric data, this is the maximum precision.  For character data, this is the length in characters.
+* For datetime datatypes, this is the length in characters of the String representation (assuming the
+* maximum allowed precision of the fractional seconds component). For binary data, this is the length in bytes.  For the ROWID datatype,
+* this is the length in bytes. Null is returned for data types where the
+* column size is not applicable.
+*
+* @param catalog a catalog name; must match the catalog name as it
+*        is stored in the database; "" retrieves those without a catalog;
+*        <code>null</code> means that the catalog name should not be used to narrow
+*        the search
+* @param schema a schema name; must match the schema name
+*        as it is stored in the database; "" retrieves those without a schema;
+*        <code>null</code> means that the schema name should not be used to narrow
+*        the search
+* @param table a table name; must match the table name as it is stored
+*        in the database
+* @param scope the scope of interest; use same values as SCOPE
+* @param nullable include columns that are nullable.
+* @return <code>ResultSet</code> - each row is a column description
+* @exception SQLException if a database access error occurs
+*/
+ResultSet getBestRowIdentifier(String catalog, String schema,
+String table, int scope, boolean nullable) throws SQLException;
+/**
+* Indicates that the scope of the best row identifier is
+* very temporary, lasting only while the
+* row is being used.
+* <P>
+* A possible value for the column
+* <code>SCOPE</code>
+* in the <code>ResultSet</code> object
+* returned by the method <code>getBestRowIdentifier</code>.
+*/
+int bestRowTemporary   = 0;
+/**
+* Indicates that the scope of the best row identifier is
+* the remainder of the current transaction.
+* <P>
+* A possible value for the column
+* <code>SCOPE</code>
+* in the <code>ResultSet</code> object
+* returned by the method <code>getBestRowIdentifier</code>.
+*/
+int bestRowTransaction = 1;
+/**
+* Indicates that the scope of the best row identifier is
+* the remainder of the current session.
+* <P>
+* A possible value for the column
+* <code>SCOPE</code>
+* in the <code>ResultSet</code> object
+* returned by the method <code>getBestRowIdentifier</code>.
+*/
+int bestRowSession     = 2;
+/**
+* Indicates that the best row identifier may or may not be a pseudo column.
+* <P>
+* A possible value for the column
+* <code>PSEUDO_COLUMN</code>
+* in the <code>ResultSet</code> object
+* returned by the method <code>getBestRowIdentifier</code>.
+*/
+int bestRowUnknown  = 0;
+/**
+* Indicates that the best row identifier is NOT a pseudo column.
+* <P>
+* A possible value for the column
+* <code>PSEUDO_COLUMN</code>
+* in the <code>ResultSet</code> object
+* returned by the method <code>getBestRowIdentifier</code>.
+*/
+int bestRowNotPseudo        = 1;
+/**
+* Indicates that the best row identifier is a pseudo column.
+* <P>
+* A possible value for the column
+* <code>PSEUDO_COLUMN</code>
+* in the <code>ResultSet</code> object
+* returned by the method <code>getBestRowIdentifier</code>.
+*/
+int bestRowPseudo   = 2;
+/**
+* Retrieves a description of a table's columns that are automatically
+* updated when any value in a row is updated.  They are
+* unordered.
+*
+* <P>Each column description has the following columns:
+*  <OL>
+*  <LI><B>SCOPE</B> short => is not used
+*  <LI><B>COLUMN_NAME</B> String => column name
+*  <LI><B>DATA_TYPE</B> int => SQL data type from <code>java.sql.Types</code>
+*  <LI><B>TYPE_NAME</B> String => Data source-dependent type name
+*  <LI><B>COLUMN_SIZE</B> int => precision
+*  <LI><B>BUFFER_LENGTH</B> int => length of column value in bytes
+*  <LI><B>DECIMAL_DIGITS</B> short  => scale - Null is returned for data types where
+* DECIMAL_DIGITS is not applicable.
+*  <LI><B>PSEUDO_COLUMN</B> short => whether this is pseudo column
+*      like an Oracle ROWID
+*      <UL>
+*      <LI> versionColumnUnknown - may or may not be pseudo column
+*      <LI> versionColumnNotPseudo - is NOT a pseudo column
+*      <LI> versionColumnPseudo - is a pseudo column
+*      </UL>
+*  </OL>
+*
+* <p>The COLUMN_SIZE column represents the specified column size for the given column.
+* For numeric data, this is the maximum precision.  For character data, this is the length in characters.
+* For datetime datatypes, this is the length in characters of the String representation (assuming the
+* maximum allowed precision of the fractional seconds component). For binary data, this is the length in bytes.  For the ROWID datatype,
+* this is the length in bytes. Null is returned for data types where the
+* column size is not applicable.
+* @param catalog a catalog name; must match the catalog name as it
+*        is stored in the database; "" retrieves those without a catalog;
+*        <code>null</code> means that the catalog name should not be used to narrow
+*        the search
+* @param schema a schema name; must match the schema name
+*        as it is stored in the database; "" retrieves those without a schema;
+*        <code>null</code> means that the schema name should not be used to narrow
+*        the search
+* @param table a table name; must match the table name as it is stored
+*        in the database
+* @return a <code>ResultSet</code> object in which each row is a
+*         column description
+* @exception SQLException if a database access error occurs
+*/
+ResultSet getVersionColumns(String catalog, String schema,
+String table) throws SQLException;
+/**
+* Indicates that this version column may or may not be a pseudo column.
+* <P>
+* A possible value for the column
+* <code>PSEUDO_COLUMN</code>
+* in the <code>ResultSet</code> object
+* returned by the method <code>getVersionColumns</code>.
+*/
+int versionColumnUnknown    = 0;
+/**
+* Indicates that this version column is NOT a pseudo column.
+* <P>
+* A possible value for the column
+* <code>PSEUDO_COLUMN</code>
+* in the <code>ResultSet</code> object
+* returned by the method <code>getVersionColumns</code>.
+*/
+int versionColumnNotPseudo  = 1;
+/**
+* Indicates that this version column is a pseudo column.
+* <P>
+* A possible value for the column
+* <code>PSEUDO_COLUMN</code>
+* in the <code>ResultSet</code> object
+* returned by the method <code>getVersionColumns</code>.
+*/
+int versionColumnPseudo     = 2;
+/**
+* Retrieves a description of the given table's primary key columns.  They
+* are ordered by COLUMN_NAME.
+*
+* <P>Each primary key column description has the following columns:
+*  <OL>
+*  <LI><B>TABLE_CAT</B> String => table catalog (may be <code>null</code>)
+*  <LI><B>TABLE_SCHEM</B> String => table schema (may be <code>null</code>)
+*  <LI><B>TABLE_NAME</B> String => table name
+*  <LI><B>COLUMN_NAME</B> String => column name
+*  <LI><B>KEY_SEQ</B> short => sequence number within primary key( a value
+*  of 1 represents the first column of the primary key, a value of 2 would
+*  represent the second column within the primary key).
+*  <LI><B>PK_NAME</B> String => primary key name (may be <code>null</code>)
+*  </OL>
+*
+* @param catalog a catalog name; must match the catalog name as it
+*        is stored in the database; "" retrieves those without a catalog;
+*        <code>null</code> means that the catalog name should not be used to narrow
+*        the search
+* @param schema a schema name; must match the schema name
+*        as it is stored in the database; "" retrieves those without a schema;
+*        <code>null</code> means that the schema name should not be used to narrow
+*        the search
+* @param table a table name; must match the table name as it is stored
+*        in the database
+* @return <code>ResultSet</code> - each row is a primary key column description
+* @exception SQLException if a database access error occurs
+*/
+ResultSet getPrimaryKeys(String catalog, String schema,
+String table) throws SQLException;
+/**
+* Retrieves a description of the primary key columns that are
+* referenced by the given table's foreign key columns (the primary keys
+* imported by a table).  They are ordered by PKTABLE_CAT,
+* PKTABLE_SCHEM, PKTABLE_NAME, and KEY_SEQ.
+*
+* <P>Each primary key column description has the following columns:
+*  <OL>
+*  <LI><B>PKTABLE_CAT</B> String => primary key table catalog
+*      being imported (may be <code>null</code>)
+*  <LI><B>PKTABLE_SCHEM</B> String => primary key table schema
+*      being imported (may be <code>null</code>)
+*  <LI><B>PKTABLE_NAME</B> String => primary key table name
+*      being imported
+*  <LI><B>PKCOLUMN_NAME</B> String => primary key column name
+*      being imported
+*  <LI><B>FKTABLE_CAT</B> String => foreign key table catalog (may be <code>null</code>)
+*  <LI><B>FKTABLE_SCHEM</B> String => foreign key table schema (may be <code>null</code>)
+*  <LI><B>FKTABLE_NAME</B> String => foreign key table name
+*  <LI><B>FKCOLUMN_NAME</B> String => foreign key column name
+*  <LI><B>KEY_SEQ</B> short => sequence number within a foreign key( a value
+*  of 1 represents the first column of the foreign key, a value of 2 would
+*  represent the second column within the foreign key).
+*  <LI><B>UPDATE_RULE</B> short => What happens to a
+*       foreign key when the primary key is updated:
+*      <UL>
+*      <LI> importedNoAction - do not allow update of primary
+*               key if it has been imported
+*      <LI> importedKeyCascade - change imported key to agree
+*               with primary key update
+*      <LI> importedKeySetNull - change imported key to <code>NULL</code>
+*               if its primary key has been updated
+*      <LI> importedKeySetDefault - change imported key to default values
+*               if its primary key has been updated
+*      <LI> importedKeyRestrict - same as importedKeyNoAction
+*                                 (for ODBC 2.x compatibility)
+*      </UL>
+*  <LI><B>DELETE_RULE</B> short => What happens to
+*      the foreign key when primary is deleted.
+*      <UL>
+*      <LI> importedKeyNoAction - do not allow delete of primary
+*               key if it has been imported
+*      <LI> importedKeyCascade - delete rows that import a deleted key
+*      <LI> importedKeySetNull - change imported key to NULL if
+*               its primary key has been deleted
+*      <LI> importedKeyRestrict - same as importedKeyNoAction
+*                                 (for ODBC 2.x compatibility)
+*      <LI> importedKeySetDefault - change imported key to default if
+*               its primary key has been deleted
+*      </UL>
+*  <LI><B>FK_NAME</B> String => foreign key name (may be <code>null</code>)
+*  <LI><B>PK_NAME</B> String => primary key name (may be <code>null</code>)
+*  <LI><B>DEFERRABILITY</B> short => can the evaluation of foreign key
+*      constraints be deferred until commit
+*      <UL>
+*      <LI> importedKeyInitiallyDeferred - see SQL92 for definition
+*      <LI> importedKeyInitiallyImmediate - see SQL92 for definition
+*      <LI> importedKeyNotDeferrable - see SQL92 for definition
+*      </UL>
+*  </OL>
+*
+* @param catalog a catalog name; must match the catalog name as it
+*        is stored in the database; "" retrieves those without a catalog;
+*        <code>null</code> means that the catalog name should not be used to narrow
+*        the search
+* @param schema a schema name; must match the schema name
+*        as it is stored in the database; "" retrieves those without a schema;
+*        <code>null</code> means that the schema name should not be used to narrow
+*        the search
+* @param table a table name; must match the table name as it is stored
+*        in the database
+* @return <code>ResultSet</code> - each row is a primary key column description
+* @exception SQLException if a database access error occurs
+* @see #getExportedKeys
+*/
+ResultSet getImportedKeys(String catalog, String schema,
+String table) throws SQLException;
+/**
+* For the column <code>UPDATE_RULE</code>,
+* indicates that
+* when the primary key is updated, the foreign key (imported key)
+* is changed to agree with it.
+* For the column <code>DELETE_RULE</code>,
+* it indicates that
+* when the primary key is deleted, rows that imported that key
+* are deleted.
+* <P>
+* A possible value for the columns <code>UPDATE_RULE</code>
+* and <code>DELETE_RULE</code> in the
+* <code>ResultSet</code> objects returned by the methods
+* <code>getImportedKeys</code>,  <code>getExportedKeys</code>,
+* and <code>getCrossReference</code>.
+*/
+int importedKeyCascade      = 0;
+/**
+* For the column <code>UPDATE_RULE</code>, indicates that
+* a primary key may not be updated if it has been imported by
+* another table as a foreign key.
+* For the column <code>DELETE_RULE</code>, indicates that
+* a primary key may not be deleted if it has been imported by
+* another table as a foreign key.
+* <P>
+* A possible value for the columns <code>UPDATE_RULE</code>
+* and <code>DELETE_RULE</code> in the
+* <code>ResultSet</code> objects returned by the methods
+* <code>getImportedKeys</code>,  <code>getExportedKeys</code>,
+* and <code>getCrossReference</code>.
+*/
+int importedKeyRestrict = 1;
+/**
+* For the columns <code>UPDATE_RULE</code>
+* and <code>DELETE_RULE</code>, indicates that
+* when the primary key is updated or deleted, the foreign key (imported key)
+* is changed to <code>NULL</code>.
+* <P>
+* A possible value for the columns <code>UPDATE_RULE</code>
+* and <code>DELETE_RULE</code> in the
+* <code>ResultSet</code> objects returned by the methods
+* <code>getImportedKeys</code>,  <code>getExportedKeys</code>,
+* and <code>getCrossReference</code>.
+*/
+int importedKeySetNull  = 2;
+/**
+* For the columns <code>UPDATE_RULE</code>
+* and <code>DELETE_RULE</code>, indicates that
+* if the primary key has been imported, it cannot be updated or deleted.
+* <P>
+* A possible value for the columns <code>UPDATE_RULE</code>
+* and <code>DELETE_RULE</code> in the
+* <code>ResultSet</code> objects returned by the methods
+* <code>getImportedKeys</code>,  <code>getExportedKeys</code>,
+* and <code>getCrossReference</code>.
+*/
+int importedKeyNoAction = 3;
+/**
+* For the columns <code>UPDATE_RULE</code>
+* and <code>DELETE_RULE</code>, indicates that
+* if the primary key is updated or deleted, the foreign key (imported key)
+* is set to the default value.
+* <P>
+* A possible value for the columns <code>UPDATE_RULE</code>
+* and <code>DELETE_RULE</code> in the
+* <code>ResultSet</code> objects returned by the methods
+* <code>getImportedKeys</code>,  <code>getExportedKeys</code>,
+* and <code>getCrossReference</code>.
+*/
+int importedKeySetDefault  = 4;
+/**
+* Indicates deferrability.  See SQL-92 for a definition.
+* <P>
+* A possible value for the column <code>DEFERRABILITY</code>
+* in the <code>ResultSet</code> objects returned by the methods
+* <code>getImportedKeys</code>,  <code>getExportedKeys</code>,
+* and <code>getCrossReference</code>.
+*/
+int importedKeyInitiallyDeferred  = 5;
+/**
+* Indicates deferrability.  See SQL-92 for a definition.
+* <P>
+* A possible value for the column <code>DEFERRABILITY</code>
+* in the <code>ResultSet</code> objects returned by the methods
+* <code>getImportedKeys</code>,  <code>getExportedKeys</code>,
+* and <code>getCrossReference</code>.
+*/
+int importedKeyInitiallyImmediate  = 6;
+/**
+* Indicates deferrability.  See SQL-92 for a definition.
+* <P>
+* A possible value for the column <code>DEFERRABILITY</code>
+* in the <code>ResultSet</code> objects returned by the methods
+* <code>getImportedKeys</code>,  <code>getExportedKeys</code>,
+* and <code>getCrossReference</code>.
+*/
+int importedKeyNotDeferrable  = 7;
+/**
+* Retrieves a description of the foreign key columns that reference the
+* given table's primary key columns (the foreign keys exported by a
+* table).  They are ordered by FKTABLE_CAT, FKTABLE_SCHEM,
+* FKTABLE_NAME, and KEY_SEQ.
+*
+* <P>Each foreign key column description has the following columns:
+*  <OL>
+*  <LI><B>PKTABLE_CAT</B> String => primary key table catalog (may be <code>null</code>)
+*  <LI><B>PKTABLE_SCHEM</B> String => primary key table schema (may be <code>null</code>)
+*  <LI><B>PKTABLE_NAME</B> String => primary key table name
+*  <LI><B>PKCOLUMN_NAME</B> String => primary key column name
+*  <LI><B>FKTABLE_CAT</B> String => foreign key table catalog (may be <code>null</code>)
+*      being exported (may be <code>null</code>)
+*  <LI><B>FKTABLE_SCHEM</B> String => foreign key table schema (may be <code>null</code>)
+*      being exported (may be <code>null</code>)
+*  <LI><B>FKTABLE_NAME</B> String => foreign key table name
+*      being exported
+*  <LI><B>FKCOLUMN_NAME</B> String => foreign key column name
+*      being exported
+*  <LI><B>KEY_SEQ</B> short => sequence number within foreign key( a value
+*  of 1 represents the first column of the foreign key, a value of 2 would
+*  represent the second column within the foreign key).
+*  <LI><B>UPDATE_RULE</B> short => What happens to
+*       foreign key when primary is updated:
+*      <UL>
+*      <LI> importedNoAction - do not allow update of primary
+*               key if it has been imported
+*      <LI> importedKeyCascade - change imported key to agree
+*               with primary key update
+*      <LI> importedKeySetNull - change imported key to <code>NULL</code> if
+*               its primary key has been updated
+*      <LI> importedKeySetDefault - change imported key to default values
+*               if its primary key has been updated
+*      <LI> importedKeyRestrict - same as importedKeyNoAction
+*                                 (for ODBC 2.x compatibility)
+*      </UL>
+*  <LI><B>DELETE_RULE</B> short => What happens to
+*      the foreign key when primary is deleted.
+*      <UL>
+*      <LI> importedKeyNoAction - do not allow delete of primary
+*               key if it has been imported
+*      <LI> importedKeyCascade - delete rows that import a deleted key
+*      <LI> importedKeySetNull - change imported key to <code>NULL</code> if
+*               its primary key has been deleted
+*      <LI> importedKeyRestrict - same as importedKeyNoAction
+*                                 (for ODBC 2.x compatibility)
+*      <LI> importedKeySetDefault - change imported key to default if
+*               its primary key has been deleted
+*      </UL>
+*  <LI><B>FK_NAME</B> String => foreign key name (may be <code>null</code>)
+*  <LI><B>PK_NAME</B> String => primary key name (may be <code>null</code>)
+*  <LI><B>DEFERRABILITY</B> short => can the evaluation of foreign key
+*      constraints be deferred until commit
+*      <UL>
+*      <LI> importedKeyInitiallyDeferred - see SQL92 for definition
+*      <LI> importedKeyInitiallyImmediate - see SQL92 for definition
+*      <LI> importedKeyNotDeferrable - see SQL92 for definition
+*      </UL>
+*  </OL>
+*
+* @param catalog a catalog name; must match the catalog name as it
+*        is stored in this database; "" retrieves those without a catalog;
+*        <code>null</code> means that the catalog name should not be used to narrow
+*        the search
+* @param schema a schema name; must match the schema name
+*        as it is stored in the database; "" retrieves those without a schema;
+*        <code>null</code> means that the schema name should not be used to narrow
+*        the search
+* @param table a table name; must match the table name as it is stored
+*        in this database
+* @return a <code>ResultSet</code> object in which each row is a
+*         foreign key column description
+* @exception SQLException if a database access error occurs
+* @see #getImportedKeys
+*/
+ResultSet getExportedKeys(String catalog, String schema,
+String table) throws SQLException;
+/**
+* Retrieves a description of the foreign key columns in the given foreign key
+* table that reference the primary key or the columns representing a unique constraint of the  parent table (could be the same or a different table).
+* The number of columns returned from the parent table must match the number of
+* columns that make up the foreign key.  They
+* are ordered by FKTABLE_CAT, FKTABLE_SCHEM, FKTABLE_NAME, and
+* KEY_SEQ.
+*
+* <P>Each foreign key column description has the following columns:
+*  <OL>
+*  <LI><B>PKTABLE_CAT</B> String => parent key table catalog (may be <code>null</code>)
+*  <LI><B>PKTABLE_SCHEM</B> String => parent key table schema (may be <code>null</code>)
+*  <LI><B>PKTABLE_NAME</B> String => parent key table name
+*  <LI><B>PKCOLUMN_NAME</B> String => parent key column name
+*  <LI><B>FKTABLE_CAT</B> String => foreign key table catalog (may be <code>null</code>)
+*      being exported (may be <code>null</code>)
+*  <LI><B>FKTABLE_SCHEM</B> String => foreign key table schema (may be <code>null</code>)
+*      being exported (may be <code>null</code>)
+*  <LI><B>FKTABLE_NAME</B> String => foreign key table name
+*      being exported
+*  <LI><B>FKCOLUMN_NAME</B> String => foreign key column name
+*      being exported
+*  <LI><B>KEY_SEQ</B> short => sequence number within foreign key( a value
+*  of 1 represents the first column of the foreign key, a value of 2 would
+*  represent the second column within the foreign key).
+*  <LI><B>UPDATE_RULE</B> short => What happens to
+*       foreign key when parent key is updated:
+*      <UL>
+*      <LI> importedNoAction - do not allow update of parent
+*               key if it has been imported
+*      <LI> importedKeyCascade - change imported key to agree
+*               with parent key update
+*      <LI> importedKeySetNull - change imported key to <code>NULL</code> if
+*               its parent key has been updated
+*      <LI> importedKeySetDefault - change imported key to default values
+*               if its parent key has been updated
+*      <LI> importedKeyRestrict - same as importedKeyNoAction
+*                                 (for ODBC 2.x compatibility)
+*      </UL>
+*  <LI><B>DELETE_RULE</B> short => What happens to
+*      the foreign key when parent key is deleted.
+*      <UL>
+*      <LI> importedKeyNoAction - do not allow delete of parent
+*               key if it has been imported
+*      <LI> importedKeyCascade - delete rows that import a deleted key
+*      <LI> importedKeySetNull - change imported key to <code>NULL</code> if
+*               its primary key has been deleted
+*      <LI> importedKeyRestrict - same as importedKeyNoAction
+*                                 (for ODBC 2.x compatibility)
+*      <LI> importedKeySetDefault - change imported key to default if
+*               its parent key has been deleted
+*      </UL>
+*  <LI><B>FK_NAME</B> String => foreign key name (may be <code>null</code>)
+*  <LI><B>PK_NAME</B> String => parent key name (may be <code>null</code>)
+*  <LI><B>DEFERRABILITY</B> short => can the evaluation of foreign key
+*      constraints be deferred until commit
+*      <UL>
+*      <LI> importedKeyInitiallyDeferred - see SQL92 for definition
+*      <LI> importedKeyInitiallyImmediate - see SQL92 for definition
+*      <LI> importedKeyNotDeferrable - see SQL92 for definition
+*      </UL>
+*  </OL>
+*
+* @param parentCatalog a catalog name; must match the catalog name
+* as it is stored in the database; "" retrieves those without a
+* catalog; <code>null</code> means drop catalog name from the selection criteria
+* @param parentSchema a schema name; must match the schema name as
+* it is stored in the database; "" retrieves those without a schema;
+* <code>null</code> means drop schema name from the selection criteria
+* @param parentTable the name of the table that exports the key; must match
+* the table name as it is stored in the database
+* @param foreignCatalog a catalog name; must match the catalog name as
+* it is stored in the database; "" retrieves those without a
+* catalog; <code>null</code> means drop catalog name from the selection criteria
+* @param foreignSchema a schema name; must match the schema name as it
+* is stored in the database; "" retrieves those without a schema;
+* <code>null</code> means drop schema name from the selection criteria
+* @param foreignTable the name of the table that imports the key; must match
+* the table name as it is stored in the database
+* @return <code>ResultSet</code> - each row is a foreign key column description
+* @exception SQLException if a database access error occurs
+* @see #getImportedKeys
+*/
+ResultSet getCrossReference(
+String parentCatalog, String parentSchema, String parentTable,
+String foreignCatalog, String foreignSchema, String foreignTable
+) throws SQLException;
+/**
+* Retrieves a description of all the data types supported by
+* this database. They are ordered by DATA_TYPE and then by how
+* closely the data type maps to the corresponding JDBC SQL type.
+*
+* <P>If the database supports SQL distinct types, then getTypeInfo() will return
+* a single row with a TYPE_NAME of DISTINCT and a DATA_TYPE of Types.DISTINCT.
+* If the database supports SQL structured types, then getTypeInfo() will return
+* a single row with a TYPE_NAME of STRUCT and a DATA_TYPE of Types.STRUCT.
+*
+* <P>If SQL distinct or structured types are supported, then information on the
+* individual types may be obtained from the getUDTs() method.
+*
+*
+* <P>Each type description has the following columns:
+*  <OL>
+*  <LI><B>TYPE_NAME</B> String => Type name
+*  <LI><B>DATA_TYPE</B> int => SQL data type from java.sql.Types
+*  <LI><B>PRECISION</B> int => maximum precision
+*  <LI><B>LITERAL_PREFIX</B> String => prefix used to quote a literal
+*      (may be <code>null</code>)
+*  <LI><B>LITERAL_SUFFIX</B> String => suffix used to quote a literal
+(may be <code>null</code>)
+*  <LI><B>CREATE_PARAMS</B> String => parameters used in creating
+*      the type (may be <code>null</code>)
+*  <LI><B>NULLABLE</B> short => can you use NULL for this type.
+*      <UL>
+*      <LI> typeNoNulls - does not allow NULL values
+*      <LI> typeNullable - allows NULL values
+*      <LI> typeNullableUnknown - nullability unknown
+*      </UL>
+*  <LI><B>CASE_SENSITIVE</B> boolean=> is it case sensitive.
+*  <LI><B>SEARCHABLE</B> short => can you use "WHERE" based on this type:
+*      <UL>
+*      <LI> typePredNone - No support
+*      <LI> typePredChar - Only supported with WHERE .. LIKE
+*      <LI> typePredBasic - Supported except for WHERE .. LIKE
+*      <LI> typeSearchable - Supported for all WHERE ..
+*      </UL>
+*  <LI><B>UNSIGNED_ATTRIBUTE</B> boolean => is it unsigned.
+*  <LI><B>FIXED_PREC_SCALE</B> boolean => can it be a money value.
+*  <LI><B>AUTO_INCREMENT</B> boolean => can it be used for an
+*      auto-increment value.
+*  <LI><B>LOCAL_TYPE_NAME</B> String => localized version of type name
+*      (may be <code>null</code>)
+*  <LI><B>MINIMUM_SCALE</B> short => minimum scale supported
+*  <LI><B>MAXIMUM_SCALE</B> short => maximum scale supported
+*  <LI><B>SQL_DATA_TYPE</B> int => unused
+*  <LI><B>SQL_DATETIME_SUB</B> int => unused
+*  <LI><B>NUM_PREC_RADIX</B> int => usually 2 or 10
+*  </OL>
+*
+* <p>The PRECISION column represents the maximum column size that the server supports for the given datatype.
+* For numeric data, this is the maximum precision.  For character data, this is the length in characters.
+* For datetime datatypes, this is the length in characters of the String representation (assuming the
+* maximum allowed precision of the fractional seconds component). For binary data, this is the length in bytes.  For the ROWID datatype,
+* this is the length in bytes. Null is returned for data types where the
+* column size is not applicable.
+*
+* @return a <code>ResultSet</code> object in which each row is an SQL
+*         type description
+* @exception SQLException if a database access error occurs
+*/
+ResultSet getTypeInfo() throws SQLException;
+/**
+* Indicates that a <code>NULL</code> value is NOT allowed for this
+* data type.
+* <P>
+* A possible value for column <code>NULLABLE</code> in the
+* <code>ResultSet</code> object returned by the method
+* <code>getTypeInfo</code>.
+*/
+int typeNoNulls = 0;
+/**
+* Indicates that a <code>NULL</code> value is allowed for this
+* data type.
+* <P>
+* A possible value for column <code>NULLABLE</code> in the
+* <code>ResultSet</code> object returned by the method
+* <code>getTypeInfo</code>.
+*/
+int typeNullable = 1;
+/**
+* Indicates that it is not known whether a <code>NULL</code> value
+* is allowed for this data type.
+* <P>
+* A possible value for column <code>NULLABLE</code> in the
+* <code>ResultSet</code> object returned by the method
+* <code>getTypeInfo</code>.
+*/
+int typeNullableUnknown = 2;
+/**
+* Indicates that <code>WHERE</code> search clauses are not supported
+* for this type.
+* <P>
+* A possible value for column <code>SEARCHABLE</code> in the
+* <code>ResultSet</code> object returned by the method
+* <code>getTypeInfo</code>.
+*/
+int typePredNone = 0;
+/**
+* Indicates that the data type
+* can be only be used in <code>WHERE</code> search clauses
+* that  use <code>LIKE</code> predicates.
+* <P>
+* A possible value for column <code>SEARCHABLE</code> in the
+* <code>ResultSet</code> object returned by the method
+* <code>getTypeInfo</code>.
+*/
+int typePredChar = 1;
+/**
+* Indicates that the data type can be only be used in <code>WHERE</code>
+* search clauses
+* that do not use <code>LIKE</code> predicates.
+* <P>
+* A possible value for column <code>SEARCHABLE</code> in the
+* <code>ResultSet</code> object returned by the method
+* <code>getTypeInfo</code>.
+*/
+int typePredBasic = 2;
+/**
+* Indicates that all <code>WHERE</code> search clauses can be
+* based on this type.
+* <P>
+* A possible value for column <code>SEARCHABLE</code> in the
+* <code>ResultSet</code> object returned by the method
+* <code>getTypeInfo</code>.
+*/
+int typeSearchable  = 3;
+/**
+* Retrieves a description of the given table's indices and statistics. They are
+* ordered by NON_UNIQUE, TYPE, INDEX_NAME, and ORDINAL_POSITION.
+*
+* <P>Each index column description has the following columns:
+*  <OL>
+*  <LI><B>TABLE_CAT</B> String => table catalog (may be <code>null</code>)
+*  <LI><B>TABLE_SCHEM</B> String => table schema (may be <code>null</code>)
+*  <LI><B>TABLE_NAME</B> String => table name
+*  <LI><B>NON_UNIQUE</B> boolean => Can index values be non-unique.
+*      false when TYPE is tableIndexStatistic
+*  <LI><B>INDEX_QUALIFIER</B> String => index catalog (may be <code>null</code>);
+*      <code>null</code> when TYPE is tableIndexStatistic
+*  <LI><B>INDEX_NAME</B> String => index name; <code>null</code> when TYPE is
+*      tableIndexStatistic
+*  <LI><B>TYPE</B> short => index type:
+*      <UL>
+*      <LI> tableIndexStatistic - this identifies table statistics that are
+*           returned in conjuction with a table's index descriptions
+*      <LI> tableIndexClustered - this is a clustered index
+*      <LI> tableIndexHashed - this is a hashed index
+*      <LI> tableIndexOther - this is some other style of index
+*      </UL>
+*  <LI><B>ORDINAL_POSITION</B> short => column sequence number
+*      within index; zero when TYPE is tableIndexStatistic
+*  <LI><B>COLUMN_NAME</B> String => column name; <code>null</code> when TYPE is
+*      tableIndexStatistic
+*  <LI><B>ASC_OR_DESC</B> String => column sort sequence, "A" => ascending,
+*      "D" => descending, may be <code>null</code> if sort sequence is not supported;
+*      <code>null</code> when TYPE is tableIndexStatistic
+*  <LI><B>CARDINALITY</B> int => When TYPE is tableIndexStatistic, then
+*      this is the number of rows in the table; otherwise, it is the
+*      number of unique values in the index.
+*  <LI><B>PAGES</B> int => When TYPE is  tableIndexStatisic then
+*      this is the number of pages used for the table, otherwise it
+*      is the number of pages used for the current index.
+*  <LI><B>FILTER_CONDITION</B> String => Filter condition, if any.
+*      (may be <code>null</code>)
+*  </OL>
+*
+* @param catalog a catalog name; must match the catalog name as it
+*        is stored in this database; "" retrieves those without a catalog;
+*        <code>null</code> means that the catalog name should not be used to narrow
+*        the search
+* @param schema a schema name; must match the schema name
+*        as it is stored in this database; "" retrieves those without a schema;
+*        <code>null</code> means that the schema name should not be used to narrow
+*        the search
+* @param table a table name; must match the table name as it is stored
+*        in this database
+* @param unique when true, return only indices for unique values;
+*     when false, return indices regardless of whether unique or not
+* @param approximate when true, result is allowed to reflect approximate
+*     or out of data values; when false, results are requested to be
+*     accurate
+* @return <code>ResultSet</code> - each row is an index column description
+* @exception SQLException if a database access error occurs
+*/
+ResultSet getIndexInfo(String catalog, String schema, String table,
+boolean unique, boolean approximate)
+throws SQLException;
+/**
+* Indicates that this column contains table statistics that
+* are returned in conjunction with a table's index descriptions.
+* <P>
+* A possible value for column <code>TYPE</code> in the
+* <code>ResultSet</code> object returned by the method
+* <code>getIndexInfo</code>.
+*/
+short tableIndexStatistic = 0;
+/**
+* Indicates that this table index is a clustered index.
+* <P>
+* A possible value for column <code>TYPE</code> in the
+* <code>ResultSet</code> object returned by the method
+* <code>getIndexInfo</code>.
+*/
+short tableIndexClustered = 1;
+/**
+* Indicates that this table index is a hashed index.
+* <P>
+* A possible value for column <code>TYPE</code> in the
+* <code>ResultSet</code> object returned by the method
+* <code>getIndexInfo</code>.
+*/
+short tableIndexHashed    = 2;
+/**
+* Indicates that this table index is not a clustered
+* index, a hashed index, or table statistics;
+* it is something other than these.
+* <P>
+* A possible value for column <code>TYPE</code> in the
+* <code>ResultSet</code> object returned by the method
+* <code>getIndexInfo</code>.
+*/
+short tableIndexOther     = 3;
+//--------------------------JDBC 2.0-----------------------------
+/**
+* Retrieves whether this database supports the given result set type.
+*
+* @param type defined in <code>java.sql.ResultSet</code>
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+* @see Connection
+* @since 1.2
+*/
+boolean supportsResultSetType(int type) throws SQLException;
+/**
+* Retrieves whether this database supports the given concurrency type
+* in combination with the given result set type.
+*
+* @param type defined in <code>java.sql.ResultSet</code>
+* @param concurrency type defined in <code>java.sql.ResultSet</code>
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+* @see Connection
+* @since 1.2
+*/
+boolean supportsResultSetConcurrency(int type, int concurrency)
+throws SQLException;
+/**
+*
+* Retrieves whether for the given type of <code>ResultSet</code> object,
+* the result set's own updates are visible.
+*
+* @param type the <code>ResultSet</code> type; one of
+*        <code>ResultSet.TYPE_FORWARD_ONLY</code>,
+*        <code>ResultSet.TYPE_SCROLL_INSENSITIVE</code>, or
+*        <code>ResultSet.TYPE_SCROLL_SENSITIVE</code>
+* @return <code>true</code> if updates are visible for the given result set type;
+*        <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+* @since 1.2
+*/
+boolean ownUpdatesAreVisible(int type) throws SQLException;
+/**
+* Retrieves whether a result set's own deletes are visible.
+*
+* @param type the <code>ResultSet</code> type; one of
+*        <code>ResultSet.TYPE_FORWARD_ONLY</code>,
+*        <code>ResultSet.TYPE_SCROLL_INSENSITIVE</code>, or
+*        <code>ResultSet.TYPE_SCROLL_SENSITIVE</code>
+* @return <code>true</code> if deletes are visible for the given result set type;
+*        <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+* @since 1.2
+*/
+boolean ownDeletesAreVisible(int type) throws SQLException;
+/**
+* Retrieves whether a result set's own inserts are visible.
+*
+* @param type the <code>ResultSet</code> type; one of
+*        <code>ResultSet.TYPE_FORWARD_ONLY</code>,
+*        <code>ResultSet.TYPE_SCROLL_INSENSITIVE</code>, or
+*        <code>ResultSet.TYPE_SCROLL_SENSITIVE</code>
+* @return <code>true</code> if inserts are visible for the given result set type;
+*        <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+* @since 1.2
+*/
+boolean ownInsertsAreVisible(int type) throws SQLException;
+/**
+* Retrieves whether updates made by others are visible.
+*
+* @param type the <code>ResultSet</code> type; one of
+*        <code>ResultSet.TYPE_FORWARD_ONLY</code>,
+*        <code>ResultSet.TYPE_SCROLL_INSENSITIVE</code>, or
+*        <code>ResultSet.TYPE_SCROLL_SENSITIVE</code>
+* @return <code>true</code> if updates made by others
+*        are visible for the given result set type;
+*        <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+* @since 1.2
+*/
+boolean othersUpdatesAreVisible(int type) throws SQLException;
+/**
+* Retrieves whether deletes made by others are visible.
+*
+* @param type the <code>ResultSet</code> type; one of
+*        <code>ResultSet.TYPE_FORWARD_ONLY</code>,
+*        <code>ResultSet.TYPE_SCROLL_INSENSITIVE</code>, or
+*        <code>ResultSet.TYPE_SCROLL_SENSITIVE</code>
+* @return <code>true</code> if deletes made by others
+*        are visible for the given result set type;
+*        <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+* @since 1.2
+*/
+boolean othersDeletesAreVisible(int type) throws SQLException;
+/**
+* Retrieves whether inserts made by others are visible.
+*
+* @param type the <code>ResultSet</code> type; one of
+*        <code>ResultSet.TYPE_FORWARD_ONLY</code>,
+*        <code>ResultSet.TYPE_SCROLL_INSENSITIVE</code>, or
+*        <code>ResultSet.TYPE_SCROLL_SENSITIVE</code>
+* @return <code>true</code> if inserts made by others
+*         are visible for the given result set type;
+*         <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+* @since 1.2
+*/
+boolean othersInsertsAreVisible(int type) throws SQLException;
+/**
+* Retrieves whether or not a visible row update can be detected by
+* calling the method <code>ResultSet.rowUpdated</code>.
+*
+* @param type the <code>ResultSet</code> type; one of
+*        <code>ResultSet.TYPE_FORWARD_ONLY</code>,
+*        <code>ResultSet.TYPE_SCROLL_INSENSITIVE</code>, or
+*        <code>ResultSet.TYPE_SCROLL_SENSITIVE</code>
+* @return <code>true</code> if changes are detected by the result set type;
+*         <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+* @since 1.2
+*/
+boolean updatesAreDetected(int type) throws SQLException;
+/**
+* Retrieves whether or not a visible row delete can be detected by
+* calling the method <code>ResultSet.rowDeleted</code>.  If the method
+* <code>deletesAreDetected</code> returns <code>false</code>, it means that
+* deleted rows are removed from the result set.
+*
+* @param type the <code>ResultSet</code> type; one of
+*        <code>ResultSet.TYPE_FORWARD_ONLY</code>,
+*        <code>ResultSet.TYPE_SCROLL_INSENSITIVE</code>, or
+*        <code>ResultSet.TYPE_SCROLL_SENSITIVE</code>
+* @return <code>true</code> if deletes are detected by the given result set type;
+*         <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+* @since 1.2
+*/
+boolean deletesAreDetected(int type) throws SQLException;
+/**
+* Retrieves whether or not a visible row insert can be detected
+* by calling the method <code>ResultSet.rowInserted</code>.
+*
+* @param type the <code>ResultSet</code> type; one of
+*        <code>ResultSet.TYPE_FORWARD_ONLY</code>,
+*        <code>ResultSet.TYPE_SCROLL_INSENSITIVE</code>, or
+*        <code>ResultSet.TYPE_SCROLL_SENSITIVE</code>
+* @return <code>true</code> if changes are detected by the specified result
+*         set type; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+* @since 1.2
+*/
+boolean insertsAreDetected(int type) throws SQLException;
+/**
+* Retrieves whether this database supports batch updates.
+*
+* @return <code>true</code> if this database supports batch upcates;
+*         <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+* @since 1.2
+*/
+boolean supportsBatchUpdates() throws SQLException;
+/**
+* Retrieves a description of the user-defined types (UDTs) defined
+* in a particular schema.  Schema-specific UDTs may have type
+* <code>JAVA_OBJECT</code>, <code>STRUCT</code>,
+* or <code>DISTINCT</code>.
+*
+* <P>Only types matching the catalog, schema, type name and type
+* criteria are returned.  They are ordered by <code>DATA_TYPE</code>,
+* <code>TYPE_CAT</code>, <code>TYPE_SCHEM</code>  and
+* <code>TYPE_NAME</code>.  The type name parameter may be a fully-qualified
+* name.  In this case, the catalog and schemaPattern parameters are
+* ignored.
+*
+* <P>Each type description has the following columns:
+*  <OL>
+*  <LI><B>TYPE_CAT</B> String => the type's catalog (may be <code>null</code>)
+*  <LI><B>TYPE_SCHEM</B> String => type's schema (may be <code>null</code>)
+*  <LI><B>TYPE_NAME</B> String => type name
+*  <LI><B>CLASS_NAME</B> String => Java class name
+*  <LI><B>DATA_TYPE</B> int => type value defined in java.sql.Types.
+*     One of JAVA_OBJECT, STRUCT, or DISTINCT
+*  <LI><B>REMARKS</B> String => explanatory comment on the type
+*  <LI><B>BASE_TYPE</B> short => type code of the source type of a
+*     DISTINCT type or the type that implements the user-generated
+*     reference type of the SELF_REFERENCING_COLUMN of a structured
+*     type as defined in java.sql.Types (<code>null</code> if DATA_TYPE is not
+*     DISTINCT or not STRUCT with REFERENCE_GENERATION = USER_DEFINED)
+*  </OL>
+*
+* <P><B>Note:</B> If the driver does not support UDTs, an empty
+* result set is returned.
+*
+* @param catalog a catalog name; must match the catalog name as it
+*        is stored in the database; "" retrieves those without a catalog;
+*        <code>null</code> means that the catalog name should not be used to narrow
+*        the search
+* @param schemaPattern a schema pattern name; must match the schema name
+*        as it is stored in the database; "" retrieves those without a schema;
+*        <code>null</code> means that the schema name should not be used to narrow
+*        the search
+* @param typeNamePattern a type name pattern; must match the type name
+*        as it is stored in the database; may be a fully qualified name
+* @param types a list of user-defined types (JAVA_OBJECT,
+*        STRUCT, or DISTINCT) to include; <code>null</code> returns all types
+* @return <code>ResultSet</code> object in which each row describes a UDT
+* @exception SQLException if a database access error occurs
+* @see #getSearchStringEscape
+* @since 1.2
+*/
+ResultSet getUDTs(String catalog, String schemaPattern,
+String typeNamePattern, int[] types)
+throws SQLException;
+/**
+* Retrieves the connection that produced this metadata object.
+* <P>
+* @return the connection that produced this metadata object
+* @exception SQLException if a database access error occurs
+* @since 1.2
+*/
+Connection getConnection() throws SQLException;
+// ------------------- JDBC 3.0 -------------------------
+/**
+* Retrieves whether this database supports savepoints.
+*
+* @return <code>true</code> if savepoints are supported;
+*         <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+* @since 1.4
+*/
+boolean supportsSavepoints() throws SQLException;
+/**
+* Retrieves whether this database supports named parameters to callable
+* statements.
+*
+* @return <code>true</code> if named parameters are supported;
+*         <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+* @since 1.4
+*/
+boolean supportsNamedParameters() throws SQLException;
+/**
+* Retrieves whether it is possible to have multiple <code>ResultSet</code> objects
+* returned from a <code>CallableStatement</code> object
+* simultaneously.
+*
+* @return <code>true</code> if a <code>CallableStatement</code> object
+*         can return multiple <code>ResultSet</code> objects
+*         simultaneously; <code>false</code> otherwise
+* @exception SQLException if a datanase access error occurs
+* @since 1.4
+*/
+boolean supportsMultipleOpenResults() throws SQLException;
+/**
+* Retrieves whether auto-generated keys can be retrieved after
+* a statement has been executed
+*
+* @return <code>true</code> if auto-generated keys can be retrieved
+*         after a statement has executed; <code>false</code> otherwise
+*<p>If <code>true</code> is returned, the JDBC driver must support the
+* returning of auto-generated keys for at least SQL INSERT statements
+*<p>
+* @exception SQLException if a database access error occurs
+* @since 1.4
+*/
+boolean supportsGetGeneratedKeys() throws SQLException;
+/**
+* Retrieves a description of the user-defined type (UDT) hierarchies defined in a
+* particular schema in this database. Only the immediate super type/
+* sub type relationship is modeled.
+* <P>
+* Only supertype information for UDTs matching the catalog,
+* schema, and type name is returned. The type name parameter
+* may be a fully-qualified name. When the UDT name supplied is a
+* fully-qualified name, the catalog and schemaPattern parameters are
+* ignored.
+* <P>
+* If a UDT does not have a direct super type, it is not listed here.
+* A row of the <code>ResultSet</code> object returned by this method
+* describes the designated UDT and a direct supertype. A row has the following
+* columns:
+*  <OL>
+*  <LI><B>TYPE_CAT</B> String => the UDT's catalog (may be <code>null</code>)
+*  <LI><B>TYPE_SCHEM</B> String => UDT's schema (may be <code>null</code>)
+*  <LI><B>TYPE_NAME</B> String => type name of the UDT
+*  <LI><B>SUPERTYPE_CAT</B> String => the direct super type's catalog
+*                           (may be <code>null</code>)
+*  <LI><B>SUPERTYPE_SCHEM</B> String => the direct super type's schema
+*                             (may be <code>null</code>)
+*  <LI><B>SUPERTYPE_NAME</B> String => the direct super type's name
+*  </OL>
+*
+* <P><B>Note:</B> If the driver does not support type hierarchies, an
+* empty result set is returned.
+*
+* @param catalog a catalog name; "" retrieves those without a catalog;
+*        <code>null</code> means drop catalog name from the selection criteria
+* @param schemaPattern a schema name pattern; "" retrieves those
+*        without a schema
+* @param typeNamePattern a UDT name pattern; may be a fully-qualified
+*        name
+* @return a <code>ResultSet</code> object in which a row gives information
+*         about the designated UDT
+* @throws SQLException if a database access error occurs
+* @see #getSearchStringEscape
+* @since 1.4
+*/
+ResultSet getSuperTypes(String catalog, String schemaPattern,
+String typeNamePattern) throws SQLException;
+/**
+* Retrieves a description of the table hierarchies defined in a particular
+* schema in this database.
+*
+* <P>Only supertable information for tables matching the catalog, schema
+* and table name are returned. The table name parameter may be a fully-
+* qualified name, in which case, the catalog and schemaPattern parameters
+* are ignored. If a table does not have a super table, it is not listed here.
+* Supertables have to be defined in the same catalog and schema as the
+* sub tables. Therefore, the type description does not need to include
+* this information for the supertable.
+*
+* <P>Each type description has the following columns:
+*  <OL>
+*  <LI><B>TABLE_CAT</B> String => the type's catalog (may be <code>null</code>)
+*  <LI><B>TABLE_SCHEM</B> String => type's schema (may be <code>null</code>)
+*  <LI><B>TABLE_NAME</B> String => type name
+*  <LI><B>SUPERTABLE_NAME</B> String => the direct super type's name
+*  </OL>
+*
+* <P><B>Note:</B> If the driver does not support type hierarchies, an
+* empty result set is returned.
+*
+* @param catalog a catalog name; "" retrieves those without a catalog;
+*        <code>null</code> means drop catalog name from the selection criteria
+* @param schemaPattern a schema name pattern; "" retrieves those
+*        without a schema
+* @param tableNamePattern a table name pattern; may be a fully-qualified
+*        name
+* @return a <code>ResultSet</code> object in which each row is a type description
+* @throws SQLException if a database access error occurs
+* @see #getSearchStringEscape
+* @since 1.4
+*/
+ResultSet getSuperTables(String catalog, String schemaPattern,
+String tableNamePattern) throws SQLException;
+/**
+* Indicates that <code>NULL</code> values might not be allowed.
+* <P>
+* A possible value for the column
+* <code>NULLABLE</code> in the <code>ResultSet</code> object
+* returned by the method <code>getAttributes</code>.
+*/
+short attributeNoNulls = 0;
+/**
+* Indicates that <code>NULL</code> values are definitely allowed.
+* <P>
+* A possible value for the column <code>NULLABLE</code>
+* in the <code>ResultSet</code> object
+* returned by the method <code>getAttributes</code>.
+*/
+short attributeNullable = 1;
+/**
+* Indicates that whether <code>NULL</code> values are allowed is not
+* known.
+* <P>
+* A possible value for the column <code>NULLABLE</code>
+* in the <code>ResultSet</code> object
+* returned by the method <code>getAttributes</code>.
+*/
+short attributeNullableUnknown = 2;
+/**
+* Retrieves a description of the given attribute of the given type
+* for a user-defined type (UDT) that is available in the given schema
+* and catalog.
+* <P>
+* Descriptions are returned only for attributes of UDTs matching the
+* catalog, schema, type, and attribute name criteria. They are ordered by
+* <code>TYPE_CAT</code>, <code>TYPE_SCHEM</code>,
+* <code>TYPE_NAME</code> and <code>ORDINAL_POSITION</code>. This description
+* does not contain inherited attributes.
+* <P>
+* The <code>ResultSet</code> object that is returned has the following
+* columns:
+* <OL>
+*  <LI><B>TYPE_CAT</B> String => type catalog (may be <code>null</code>)
+*  <LI><B>TYPE_SCHEM</B> String => type schema (may be <code>null</code>)
+*  <LI><B>TYPE_NAME</B> String => type name
+*  <LI><B>ATTR_NAME</B> String => attribute name
+*  <LI><B>DATA_TYPE</B> int => attribute type SQL type from java.sql.Types
+*  <LI><B>ATTR_TYPE_NAME</B> String => Data source dependent type name.
+*  For a UDT, the type name is fully qualified. For a REF, the type name is
+*  fully qualified and represents the target type of the reference type.
+*  <LI><B>ATTR_SIZE</B> int => column size.  For char or date
+*      types this is the maximum number of characters; for numeric or
+*      decimal types this is precision.
+*  <LI><B>DECIMAL_DIGITS</B> int => the number of fractional digits. Null is returned for data types where
+* DECIMAL_DIGITS is not applicable.
+*  <LI><B>NUM_PREC_RADIX</B> int => Radix (typically either 10 or 2)
+*  <LI><B>NULLABLE</B> int => whether NULL is allowed
+*      <UL>
+*      <LI> attributeNoNulls - might not allow NULL values
+*      <LI> attributeNullable - definitely allows NULL values
+*      <LI> attributeNullableUnknown - nullability unknown
+*      </UL>
+*  <LI><B>REMARKS</B> String => comment describing column (may be <code>null</code>)
+*  <LI><B>ATTR_DEF</B> String => default value (may be <code>null</code>)
+*  <LI><B>SQL_DATA_TYPE</B> int => unused
+*  <LI><B>SQL_DATETIME_SUB</B> int => unused
+*  <LI><B>CHAR_OCTET_LENGTH</B> int => for char types the
+*       maximum number of bytes in the column
+*  <LI><B>ORDINAL_POSITION</B> int => index of the attribute in the UDT
+*      (starting at 1)
+*  <LI><B>IS_NULLABLE</B> String  => ISO rules are used to determine
+* the nullability for a attribute.
+*       <UL>
+*       <LI> YES           --- if the attribute can include NULLs
+*       <LI> NO            --- if the attribute cannot include NULLs
+*       <LI> empty string  --- if the nullability for the
+* attribute is unknown
+*       </UL>
+*  <LI><B>SCOPE_CATALOG</B> String => catalog of table that is the
+*      scope of a reference attribute (<code>null</code> if DATA_TYPE isn't REF)
+*  <LI><B>SCOPE_SCHEMA</B> String => schema of table that is the
+*      scope of a reference attribute (<code>null</code> if DATA_TYPE isn't REF)
+*  <LI><B>SCOPE_TABLE</B> String => table name that is the scope of a
+*      reference attribute (<code>null</code> if the DATA_TYPE isn't REF)
+* <LI><B>SOURCE_DATA_TYPE</B> short => source type of a distinct type or user-generated
+*      Ref type,SQL type from java.sql.Types (<code>null</code> if DATA_TYPE
+*      isn't DISTINCT or user-generated REF)
+*  </OL>
+* @param catalog a catalog name; must match the catalog name as it
+*        is stored in the database; "" retrieves those without a catalog;
+*        <code>null</code> means that the catalog name should not be used to narrow
+*        the search
+* @param schemaPattern a schema name pattern; must match the schema name
+*        as it is stored in the database; "" retrieves those without a schema;
+*        <code>null</code> means that the schema name should not be used to narrow
+*        the search
+* @param typeNamePattern a type name pattern; must match the
+*        type name as it is stored in the database
+* @param attributeNamePattern an attribute name pattern; must match the attribute
+*        name as it is declared in the database
+* @return a <code>ResultSet</code> object in which each row is an
+*         attribute description
+* @exception SQLException if a database access error occurs
+* @see #getSearchStringEscape
+* @since 1.4
+*/
+ResultSet getAttributes(String catalog, String schemaPattern,
+String typeNamePattern, String attributeNamePattern)
+throws SQLException;
+/**
+* Retrieves whether this database supports the given result set holdability.
+*
+* @param holdability one of the following constants:
+*          <code>ResultSet.HOLD_CURSORS_OVER_COMMIT</code> or
+*          <code>ResultSet.CLOSE_CURSORS_AT_COMMIT<code>
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+* @see Connection
+* @since 1.4
+*/
+boolean supportsResultSetHoldability(int holdability) throws SQLException;
+/**
+* Retrieves this database's default holdability for <code>ResultSet</code>
+* objects.
+*
+* @return the default holdability; either
+*         <code>ResultSet.HOLD_CURSORS_OVER_COMMIT</code> or
+*         <code>ResultSet.CLOSE_CURSORS_AT_COMMIT</code>
+* @exception SQLException if a database access error occurs
+* @since 1.4
+*/
+int getResultSetHoldability() throws SQLException;
+/**
+* Retrieves the major version number of the underlying database.
+*
+* @return the underlying database's major version
+* @exception SQLException if a database access error occurs
+* @since 1.4
+*/
+int getDatabaseMajorVersion() throws SQLException;
+/**
+* Retrieves the minor version number of the underlying database.
+*
+* @return underlying database's minor version
+* @exception SQLException if a database access error occurs
+* @since 1.4
+*/
+int getDatabaseMinorVersion() throws SQLException;
+/**
+* Retrieves the major JDBC version number for this
+* driver.
+*
+* @return JDBC version major number
+* @exception SQLException if a database access error occurs
+* @since 1.4
+*/
+int getJDBCMajorVersion() throws SQLException;
+/**
+* Retrieves the minor JDBC version number for this
+* driver.
+*
+* @return JDBC version minor number
+* @exception SQLException if a database access error occurs
+* @since 1.4
+*/
+int getJDBCMinorVersion() throws SQLException;
+/**
+*  A possible return value for the method
+* <code>DatabaseMetaData.getSQLStateType</code> which is used to indicate
+* whether the value returned by the method
+* <code>SQLException.getSQLState</code> is an
+* X/Open (now know as Open Group) SQL CLI SQLSTATE value.
+* <P>
+* @since 1.4
+*/
+int sqlStateXOpen = 1;
+/**
+*  A possible return value for the method
+* <code>DatabaseMetaData.getSQLStateType</code> which is used to indicate
+* whether the value returned by the method
+* <code>SQLException.getSQLState</code> is an SQLSTATE value.
+* <P>
+* @since 1.6
+*/
+int sqlStateSQL = 2;
+/**
+*  A possible return value for the method
+* <code>DatabaseMetaData.getSQLStateType</code> which is used to indicate
+* whether the value returned by the method
+* <code>SQLException.getSQLState</code> is an SQL99 SQLSTATE value.
+* <P>
+* <b>Note:</b>This constant remains only for compatibility reasons. Developers
+* should use the constant <code>sqlStateSQL</code> instead.
+*
+* @since 1.4
+*/
+int sqlStateSQL99 = sqlStateSQL;
+/**
+* Indicates whether the SQLSTATE returned by <code>SQLException.getSQLState</code>
+* is X/Open (now known as Open Group) SQL CLI or SQL:2003.
+* @return the type of SQLSTATE; one of:
+*        sqlStateXOpen or
+*        sqlStateSQL
+* @throws SQLException if a database access error occurs
+* @since 1.4
+*/
+int getSQLStateType() throws SQLException;
+/**
+* Indicates whether updates made to a LOB are made on a copy or directly
+* to the LOB.
+* @return <code>true</code> if updates are made to a copy of the LOB;
+*         <code>false</code> if updates are made directly to the LOB
+* @throws SQLException if a database access error occurs
+* @since 1.4
+*/
+boolean locatorsUpdateCopy() throws SQLException;
+/**
+* Retrieves whether this database supports statement pooling.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @throws SQLExcpetion if a database access error occurs
+* @since 1.4
+*/
+boolean supportsStatementPooling() throws SQLException;
+//------------------------- JDBC 4.0 -----------------------------------
+/**
+* Indicates whether or not this data source supports the SQL <code>ROWID</code> type,
+* and if so  the lifetime for which a <code>RowId</code> object remains valid.
+* <p>
+* The returned int values have the following relationship:
+* <pre>
+*     ROWID_UNSUPPORTED < ROWID_VALID_OTHER < ROWID_VALID_TRANSACTION
+*         < ROWID_VALID_SESSION < ROWID_VALID_FOREVER
+* </pre>
+* so conditional logic such as
+* <pre>
+*     if (metadata.getRowIdLifetime() > DatabaseMetaData.ROWID_VALID_TRANSACTION)
+* </pre>
+* can be used. Valid Forever means valid across all Sessions, and valid for
+* a Session means valid across all its contained Transactions.
+*
+* @return the status indicating the lifetime of a <code>RowId</code>
+* @throws SQLException if a database access error occurs
+* @since 1.6
+*/
+RowIdLifetime getRowIdLifetime() throws SQLException;
+/**
+* Retrieves the schema names available in this database.  The results
+* are ordered by <code>TABLE_CATALOG</code> and
+* <code>TABLE_SCHEM</code>.
+*
+* <P>The schema columns are:
+*  <OL>
+*  <LI><B>TABLE_SCHEM</B> String => schema name
+*  <LI><B>TABLE_CATALOG</B> String => catalog name (may be <code>null</code>)
+*  </OL>
+*
+*
+* @param catalog a catalog name; must match the catalog name as it is stored
+* in the database;"" retrieves those without a catalog; null means catalog
+* name should not be used to narrow down the search.
+* @param schemaPattern a schema name; must match the schema name as it is
+* stored in the database; null means
+* schema name should not be used to narrow down the search.
+* @return a <code>ResultSet</code> object in which each row is a
+*         schema description
+* @exception SQLException if a database access error occurs
+* @see #getSearchStringEscape
+* @since 1.6
+*/
+ResultSet getSchemas(String catalog, String schemaPattern) throws SQLException;
+/**
+* Retrieves whether this database supports invoking user-defined or vendor functions
+* using the stored procedure escape syntax.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+* @since 1.6
+*/
+boolean supportsStoredFunctionsUsingCallSyntax() throws SQLException;
+/**
+* Retrieves whether a <code>SQLException</code> while autoCommit is <code>true</code> inidcates
+* that all open ResultSets are closed, even ones that are holdable.  When a <code>SQLException</code> occurs while
+* autocommit is <code>true</code>, it is vendor specific whether the JDBC driver responds with a commit operation, a
+* rollback operation, or by doing neither a commit nor a rollback.  A potential result of this difference
+* is in whether or not holdable ResultSets are closed.
+*
+* @return <code>true</code> if so; <code>false</code> otherwise
+* @exception SQLException if a database access error occurs
+* @since 1.6
+*/
+boolean autoCommitFailureClosesAllResultSets() throws SQLException;
+/**
+* Retrieves a list of the client info properties
+* that the driver supports.  The result set contains the following columns
+* <p>
+* <ol>
+* <li><b>NAME</b> String=> The name of the client info property<br>
+* <li><b>MAX_LEN</b> int=> The maximum length of the value for the property<br>
+* <li><b>DEFAULT_VALUE</b> String=> The default value of the property<br>
+* <li><b>DESCRIPTION</b> String=> A description of the property.  This will typically
+*                                              contain information as to where this property is
+*                                              stored in the database.
+* </ol>
+* <p>
+* The <code>ResultSet</code> is sorted by the NAME column
+* <p>
+* @return      A <code>ResultSet</code> object; each row is a supported client info
+* property
+* <p>
+*  @exception SQLException if a database access error occurs
+* <p>
+* @since 1.6
+*/
+ResultSet getClientInfoProperties()
+throws SQLException;
+/**
+* Retrieves a description of the  system and user functions available
+* in the given catalog.
+* <P>
+* Only system and user function descriptions matching the schema and
+* function name criteria are returned.  They are ordered by
+* <code>FUNCTION_CAT</code>, <code>FUNCTION_SCHEM</code>,
+* <code>FUNCTION_NAME</code> and
+* <code>SPECIFIC_ NAME</code>.
+*
+* <P>Each function description has the the following columns:
+*  <OL>
+*  <LI><B>FUNCTION_CAT</B> String => function catalog (may be <code>null</code>)
+*  <LI><B>FUNCTION_SCHEM</B> String => function schema (may be <code>null</code>)
+*  <LI><B>FUNCTION_NAME</B> String => function name.  This is the name
+* used to invoke the function
+*  <LI><B>REMARKS</B> String => explanatory comment on the function
+* <LI><B>FUNCTION_TYPE</B> short => kind of function:
+*      <UL>
+*      <LI>functionResultUnknown - Cannot determine if a return value
+*       or table will be returned
+*      <LI> functionNoTable- Does not return a table
+*      <LI> functionReturnsTable - Returns a table
+*      </UL>
+*  <LI><B>SPECIFIC_NAME</B> String  => the name which uniquely identifies
+*  this function within its schema.  This is a user specified, or DBMS
+* generated, name that may be different then the <code>FUNCTION_NAME</code>
+* for example with overload functions
+*  </OL>
+* <p>
+* A user may not have permission to execute any of the functions that are
+* returned by <code>getFunctions</code>
+*
+* @param catalog a catalog name; must match the catalog name as it
+*        is stored in the database; "" retrieves those without a catalog;
+*        <code>null</code> means that the catalog name should not be used to narrow
+*        the search
+* @param schemaPattern a schema name pattern; must match the schema name
+*        as it is stored in the database; "" retrieves those without a schema;
+*        <code>null</code> means that the schema name should not be used to narrow
+*        the search
+* @param functionNamePattern a function name pattern; must match the
+*        function name as it is stored in the database
+* @return <code>ResultSet</code> - each row is a function description
+* @exception SQLException if a database access error occurs
+* @see #getSearchStringEscape
+* @since 1.6
+*/
+ResultSet getFunctions(String catalog, String schemaPattern,
+String functionNamePattern) throws SQLException;
+/**
+* Retrieves a description of the given catalog's system or user
+* function parameters and return type.
+*
+* <P>Only descriptions matching the schema,  function and
+* parameter name criteria are returned. They are ordered by
+* <code>FUNCTION_CAT</code>, <code>FUNCTION_SCHEM</code>,
+* <code>FUNCTION_NAME</code> and
+* <code>SPECIFIC_ NAME</code>. Within this, the return value,
+* if any, is first. Next are the parameter descriptions in call
+* order. The column descriptions follow in column number order.
+*
+* <P>Each row in the <code>ResultSet</code>
+* is a parameter description, column description or
+* return type description with the following fields:
+*  <OL>
+*  <LI><B>FUNCTION_CAT</B> String => function catalog (may be <code>null</code>)
+*  <LI><B>FUNCTION_SCHEM</B> String => function schema (may be <code>null</code>)
+*  <LI><B>FUNCTION_NAME</B> String => function name.  This is the name
+* used to invoke the function
+*  <LI><B>COLUMN_NAME</B> String => column/parameter name
+*  <LI><B>COLUMN_TYPE</B> Short => kind of column/parameter:
+*      <UL>
+*      <LI> functionColumnUnknown - nobody knows
+*      <LI> functionColumnIn - IN parameter
+*      <LI> functionColumnInOut - INOUT parameter
+*      <LI> functionColumnOut - OUT parameter
+*      <LI> functionColumnReturn - function return value
+*      <LI> functionColumnResult - Indicates that the parameter or column
+*  is a column in the <code>ResultSet</code>
+*      </UL>
+*  <LI><B>DATA_TYPE</B> int => SQL type from java.sql.Types
+*  <LI><B>TYPE_NAME</B> String => SQL type name, for a UDT type the
+*  type name is fully qualified
+*  <LI><B>PRECISION</B> int => precision
+*  <LI><B>LENGTH</B> int => length in bytes of data
+*  <LI><B>SCALE</B> short => scale -  null is returned for data types where
+* SCALE is not applicable.
+*  <LI><B>RADIX</B> short => radix
+*  <LI><B>NULLABLE</B> short => can it contain NULL.
+*      <UL>
+*      <LI> functionNoNulls - does not allow NULL values
+*      <LI> functionNullable - allows NULL values
+*      <LI> functionNullableUnknown - nullability unknown
+*      </UL>
+*  <LI><B>REMARKS</B> String => comment describing column/parameter
+*  <LI><B>CHAR_OCTET_LENGTH</B> int  => the maximum length of binary
+* and character based parameters or columns.  For any other datatype the returned value
+* is a NULL
+*  <LI><B>ORDINAL_POSITION</B> int  => the ordinal position, starting
+* from 1, for the input and output parameters. A value of 0
+* is returned if this row describes the function's return value.
+* For result set columns, it is the
+* ordinal position of the column in the result set starting from 1.
+*  <LI><B>IS_NULLABLE</B> String  => ISO rules are used to determine
+* the nullability for a parameter or column.
+*       <UL>
+*       <LI> YES           --- if the parameter or column can include NULLs
+*       <LI> NO            --- if the parameter or column  cannot include NULLs
+*       <LI> empty string  --- if the nullability for the
+* parameter  or column is unknown
+*       </UL>
+*  <LI><B>SPECIFIC_NAME</B> String  => the name which uniquely identifies
+* this function within its schema.  This is a user specified, or DBMS
+* generated, name that may be different then the <code>FUNCTION_NAME</code>
+* for example with overload functions
+*  </OL>
+*
+* <p>The PRECISION column represents the specified column size for the given
+* parameter or column.
+* For numeric data, this is the maximum precision.  For character data, this is the length in characters.
+* For datetime datatypes, this is the length in characters of the String representation (assuming the
+* maximum allowed precision of the fractional seconds component). For binary data, this is the length in bytes.  For the ROWID datatype,
+* this is the length in bytes. Null is returned for data types where the
+* column size is not applicable.
+* @param catalog a catalog name; must match the catalog name as it
+*        is stored in the database; "" retrieves those without a catalog;
+*        <code>null</code> means that the catalog name should not be used to narrow
+*        the search
+* @param schemaPattern a schema name pattern; must match the schema name
+*        as it is stored in the database; "" retrieves those without a schema;
+*        <code>null</code> means that the schema name should not be used to narrow
+*        the search
+* @param functionNamePattern a procedure name pattern; must match the
+*        function name as it is stored in the database
+* @param columnNamePattern a parameter name pattern; must match the
+* parameter or column name as it is stored in the database
+* @return <code>ResultSet</code> - each row describes a
+* user function parameter, column  or return type
+*
+* @exception SQLException if a database access error occurs
+* @see #getSearchStringEscape
+* @since 1.6
+*/
+ResultSet getFunctionColumns(String catalog,
+String schemaPattern,
+String functionNamePattern,
+String columnNamePattern) throws SQLException;
+/**
+* Indicates that type of the parameter or column is unknown.
+* <P>
+* A possible value for the column
+* <code>COLUMN_TYPE</code>
+* in the <code>ResultSet</code>
+* returned by the method <code>getFunctionColumns</code>.
+*/
+int functionColumnUnknown = 0;
+/**
+* Indicates that the parameter or column is an IN parameter.
+* <P>
+*  A possible value for the column
+* <code>COLUMN_TYPE</code>
+* in the <code>ResultSet</code>
+* returned by the method <code>getFunctionColumns</code>.
+* @since 1.6
+*/
+int functionColumnIn = 1;
+/**
+* Indicates that the parameter or column is an INOUT parameter.
+* <P>
+* A possible value for the column
+* <code>COLUMN_TYPE</code>
+* in the <code>ResultSet</code>
+* returned by the method <code>getFunctionColumns</code>.
+* @since 1.6
+*/
+int functionColumnInOut = 2;
+/**
+* Indicates that the parameter or column is an OUT parameter.
+* <P>
+* A possible value for the column
+* <code>COLUMN_TYPE</code>
+* in the <code>ResultSet</code>
+* returned by the method <code>getFunctionColumns</code>.
+* @since 1.6
+*/
+int functionColumnOut = 3;
+/**
+* Indicates that the parameter or column is a return value.
+* <P>
+*  A possible value for the column
+* <code>COLUMN_TYPE</code>
+* in the <code>ResultSet</code>
+* returned by the method <code>getFunctionColumns</code>.
+* @since 1.6
+*/
+int functionReturn = 4;
+/**
+* Indicates that the parameter or column is a column in a result set.
+* <P>
+*  A possible value for the column
+* <code>COLUMN_TYPE</code>
+* in the <code>ResultSet</code>
+* returned by the method <code>getFunctionColumns</code>.
+* @since 1.6
+*/
+int functionColumnResult = 5;
+/**
+* Indicates that <code>NULL</code> values are not allowed.
+* <P>
+* A possible value for the column
+* <code>NULLABLE</code>
+* in the <code>ResultSet</code> object
+* returned by the method <code>getFunctionColumns</code>.
+* @since 1.6
+*/
+int functionNoNulls = 0;
+/**
+* Indicates that <code>NULL</code> values are allowed.
+* <P>
+* A possible value for the column
+* <code>NULLABLE</code>
+* in the <code>ResultSet</code> object
+* returned by the method <code>getFunctionColumns</code>.
+* @since 1.6
+*/
+int functionNullable = 1;
+/**
+* Indicates that whether <code>NULL</code> values are allowed
+* is unknown.
+* <P>
+* A possible value for the column
+* <code>NULLABLE</code>
+* in the <code>ResultSet</code> object
+* returned by the method <code>getFunctionColumns</code>.
+* @since 1.6
+*/
+int functionNullableUnknown = 2;
+/**
+* Indicates that it is not known whether the function returns
+* a result or a table.
+* <P>
+* A possible value for column <code>FUNCTION_TYPE</code> in the
+* <code>ResultSet</code> object returned by the method
+* <code>getFunctions</code>.
+* @since 1.6
+*/
+int functionResultUnknown   = 0;
+/**
+* Indicates that the function  does not return a table.
+* <P>
+* A possible value for column <code>FUNCTION_TYPE</code> in the
+* <code>ResultSet</code> object returned by the method
+* <code>getFunctions</code>.
+* @since 1.6
+*/
+int functionNoTable         = 1;
+/**
+* Indicates that the function  returns a table.
+* <P>
+* A possible value for column <code>FUNCTION_TYPE</code> in the
+* <code>ResultSet</code> object returned by the method
+* <code>getFunctions</code>.
+* @since 1.6
+*/
+int functionReturnsTable    = 2;
+}

changeset 2	90ce3da70b43
child 5506	202f599c92aa