PRB: ODBC Connections Must Be Opened With SQL_DRIVER_NOPROMPT

ID: Q167745

The information in this article applies to:


ODBC connections not opened with the SQL_DRIVER_NOPROMPT are rejected by Microsoft Transaction Server. This is because a Transaction Server component cannot cause an ODBC logon dialog box to be displayed. Specifying SQL_DRIVER_NOPROMPT means that if the connection information is incorrect, you will receive an error. If you are using a data access library, it must be capable of specifying SQL_DRIVER_NOPROMPT when it connects to the ODBC driver.

RDO and ADO allow you to specify SQL_DRIVER_NOPROMPT, while DAO does not (unless you are using ODBCDirect).

If you are using Visual C++ and the MFC ODBC classes, you must use CDatabase::OpenEx and specify the noOdbcDialog option to open your database connections. Using CDatabase::Open causes MFC to use SQL_DRIVER_COMPLETE instead of SQL_DRIVER_NOPROMPT, so CDatabase::Open always fails.


This behavior is by design.


For more information, visit the following sites on the World Wide Web:

Additional query words: Open Database Connectivity
Keywords          : kbinterop TSrvODBC 
Version           : 1.0
Platform          : WINDOWS
Issue type        : kbprb

Last Reviewed: October 11, 1997