diff -r 428c278af4be -r c83119110c7b src/ResultSet.cpp
--- a/src/ResultSet.cpp	Thu Jun 04 00:46:00 2020 +0200
+++ b/src/ResultSet.cpp	Thu Jun 04 13:24:17 2020 +0200
@@ -44,12 +44,18 @@
 }
 
 relpipe::writer::boolean_t ResultSet::getBoolean(unsigned short columnNumber, bool* isNull) {
-	throw SqlException(L"not yet implemented: getBoolean()");
+	relpipe::writer::string_t s = getString(columnNumber, isNull);
+	if (isNull && *isNull) return false;
+	else if (s == L"1" || s == L"true" || s == L"y" || s == L"yes" || s == L"TRUE" || s == L"Y" || s == L"YES") return true;
+	else if (s == L"0" || s == L"false" || s == L"n" || s == L"no" || s == L"FALSE" || s == L"N" || s == L"NO") return false;
+	else throw SqlException(L"Unable to parse „" + s + L"“ as boolean");
 }
 
 relpipe::writer::integer_t ResultSet::getInteger(unsigned short columnNumber, bool* isNull) {
-	throw SqlException(L"not yet implemented: getInteger()");
-
+	// TODO: get integer directly from SQLGetData() without string conversion
+	relpipe::writer::string_t s = getString(columnNumber, isNull);
+	if (isNull && *isNull) return 0;
+	else return std::stol(s);
 }
 
 relpipe::writer::string_t ResultSet::getString(unsigned short columnNumber, bool* isNull) {
@@ -85,10 +91,15 @@
 		SQLULEN columnSize;
 		SQLSMALLINT decimalDigits;
 		SQLSMALLINT nullable;
+
 		result = SQLDescribeCol(statement, columnNumber, (SQLCHAR*) nameBuffer.c_str(), nameBuffer.capacity(), &nameLength, &dataType, &columnSize, &decimalDigits, &nullable);
 		if (OdbcCommon::isNotSuccessful(result)) throw SqlException(L"Unable describe column", result, SQL_HANDLE_STMT, statement);
+
 		columnDescriptor.name = convertor.from_bytes(nameBuffer.c_str());
-		//columnDescriptor.type = … // FIXME: support also other types than string
+
+		if (dataType == SQL_INTEGER || dataType == SQL_BIGINT) columnDescriptor.type = relpipe::writer::TypeId::INTEGER;
+		else if (dataType == SQL_BIT) columnDescriptor.type = relpipe::writer::TypeId::BOOLEAN;
+
 		columnDescriptors.emplace_back(columnDescriptor);
 	}