Writing ODBC 3.x Drivers

The following table shows function support in an ODBC 3.x driver and an ODBC application, and the mapping performed by the Driver Manager when the functions are called against an ODBC 3.x driver.

Function	Supported by an ODBC 3.x driver?	Supported by an ODBC 3.x application?	Mapped/supported by the ODBC 3.x Driver Manager to an ODBC 3.x driver?
SQLAllocConnect	No	No[1]	Yes
SQLAllocEnv	No	No[1]	Yes
SQLAllocHandle	Yes	Yes	No
SQLAllocStmt	No	No[1]	Yes
SQLBindCol	Yes	Yes	No
SQLBindParam	No	Yes[2]	Yes
SQLBindParameter	Yes	Yes	No
SQLBrowseConnect	Yes	Yes	No
SQLBulkOperations	Yes	Yes	No
SQLCancel	Yes	Yes	No
SQLCloseCursor	Yes	Yes	No
SQLColAttribute	Yes	Yes	No
SQLColAttributes	No[3]	No	Yes
SQLColumnPrivileges	Yes	Yes	No
SQLColumns	Yes	Yes	No
SQLConnect	Yes	Yes	No
SQLCopyDesc	Yes	Yes	Yes[4]
SQLDataSources	No	Yes	Yes
SQLDescribeCol	Yes	Yes	No
SQLDescribeParam	Yes	Yes	No
SQLDisconnect	Yes	Yes	No
SQLDriverConnect	Yes	Yes	No
SQLDrivers	No	Yes	Yes
SQLEndTran	Yes	Yes	No
SQLError	No	No[1]	Yes
SQLExecDirect	Yes	Yes	No
SQLExecute	Yes	Yes	No
SQLExtendedFetch	Yes	No	No
SQLFetch	Yes	Yes	No
SQLFetchScroll	Yes	Yes	No
SQLForeignKeys	Yes	Yes	No
SQLFreeConnect	No	Yes[1]	Yes
SQLFreeEnv	No	Yes[1]	Yes
SQLFreeHandle	Yes	Yes	No
SQLFreeStmt	Yes	Yes	No
SQLGetConnectAttr	Yes	Yes	No
SQLGetConnectOption	No[5]	No[1]	Yes
SQLGetCursorName	Yes	Yes	No
SQLGetData	Yes	Yes	No
SQLGetDescField	Yes	Yes	No
SQLGetDescRec	Yes	Yes	No
SQLGetDiagField	Yes	Yes	No
SQLGetDiagRec	Yes	Yes	No
SQLGetEnvAttr	Yes	Yes	No
SQLGetFunctions	No[6]	Yes	Yes
SQLGetInfo	Yes	Yes	No
SQLGetStmtAttr	Yes	Yes	No
SQLGetStmtOption	No[5]	No[1]	Yes
SQLGetTypeInfo	Yes	Yes	No
SQLMoreResults	Yes	Yes	No
SQLNativeSql	Yes	Yes	No
SQLNumParams	Yes	Yes	No
SQLNumResultCols	Yes	Yes	No
SQLParamData	Yes	Yes	No
SQLParamOptions	No	No	Yes
SQLPrepare	Yes	Yes	No
SQLPrimaryKeys	Yes	Yes	No
SQLProcedureColumns	Yes	Yes	No
SQLProcedures	Yes	Yes	No
SQLPutData	Yes	Yes	No
SQLRowCount	Yes	Yes	No
SQLSetConnectAttr	Yes	Yes	No
SQLSetConnectOption	No[5]	No[1]	Yes
SQLSetCursorName	Yes	Yes	No
SQLSetDescField	Yes	Yes	No
SQLSetDescRec	Yes	Yes	No
SQLSetEnvAttr	Yes	Yes	No
SQLSetPos	Yes	Yes	No
SQLSetParam	No	No	Yes
SQLSetScrollOption	Yes	Yes	No
SQLSetStmtAttr	Yes	Yes	No
SQLSetStmtOption	No[5]	No[1]	Yes
SQLSpecialColumns	Yes	Yes	No
SQLStatistics	Yes	Yes	No
SQLTablePrivileges	Yes	Yes	No
SQLTables	Yes	Yes	No
SQLTransact	No	No[1]	Yes

[1] This function is deprecated in ODBC 3.x. ODBC 3.x applications should not use this function. However, an Open Group or ISO CLI-compliant application can call this function.

[2] ODBC 3.x applications should use SQLBindParameter instead of SQLBindParam. However, an Open Group or ISO CLI-compliant application can call this function.

[3] Driver writers should note that the ODBC 2.x column attributes SQL_COLUMN_PRECISION, SQL_COLUMN_SCALE, and SQL_COLUMN_LENGTH must be supported with SQLColAttribute.

[4] SQLCopyDesc is partially implemented by the Driver Manager when a descriptor is being copied across connections that belong to different drivers. Drivers are required to support SQLCopyDesc across two of their own connections. Functions such as SQLDrivers, which are implemented solely by the Driver Manager, do not show up on this list.

[5] Under certain circumstances, drivers may need to support this function. For more information, see this function's reference page.

[6] The driver can choose to support SQLGetFunctions if the set of functions that the driver supports varies from connection to connection.