KnowledgeBase Archive

An Archive of Early Microsoft KnowledgeBase Articles

View on GitHub

Q180840: FIX: Access Violation with SQLConfigDatasource & Oracle Driver

Article: Q180840
Product(s): Open Database Connectivity (ODBC)
Version(s): WINDOWS:1.0,2.5
Operating System(s): 
Keyword(s): kbcode kberrmsg kbDatabase kbDriver kbODBC kbOracle kbGrpDSVCDB kbGrpDSMDAC kbDSupport
Last Modified: 23-AUG-2001

-------------------------------------------------------------------------------
The information in this article applies to:

- Microsoft ODBC Driver for Oracle (Build 2.06325), version 1.0 
- Microsoft Data Access Components version 2.5 
-------------------------------------------------------------------------------

SYMPTOMS
========

When you attempt to create an ODBC data source with the SQLConfigDatasource API
and the Microsoft ODBC Driver for Oracle version 1.0 (Msorcl10.dll), you get one
of error messages listed below.

On Windows 95:

  <APPLICATION.EXE> has caused an invalid page fault in module
  MSORCL10.DLL at 0137:61016bae.

On Windows NT 4.0:

  The instruction at "0x61016bae" referenced memory at "0x00000000". The memory
  could not be "read".

CAUSE
=====

This is a known bug in the Microsoft ODBC Driver for Oracle, version 1.0.
SQLConfigDatasource fails when provided with any invalid attribute string
name/value pair.

RESOLUTION
==========

Use only the proper ODBC data source attribute string values found in the
Microsoft Knowledge Base article listed in the REFERENCES section or get the
updated Oracle ODBC driver version 2.0 that ignores invalid attribute strings.

STATUS
======

Microsoft has confirmed this to be a bug in the Microsoft products listed at the
beginning of this article. This bug has been corrected in the Microsoft ODBC for
Oracle driver, version 2.0.

MORE INFORMATION
================

Steps to Reproduce Behavior
---------------------------

Run the following sample code to reproduce the error:

     // START OF SAMPLE CODE
     #include <windows.h>
     #include <odbcinst.h>
     #include <stdio.h>

     void main()
     {
        SQLConfigDataSource( NULL,
                             ODBC_ADD_DSN,
                             "Microsoft ODBC Driver for Oracle",
                             "DSN=MSORCL10_DSN\0"     // This is valid.
                             "BOGUS=Yada-Yada-Yada\0" // This is invalid.
                            );
     }
     // END OF SAMPLE CODE

REFERENCES
==========

For additional information, please see the following article in the Microsoft
Knowledge Base:

  Q179236 INFO: Using SQLConfigDatasource with MS Oracle ODBC Driver

  Q179236 INFO: Understanding Microsoft's Oracle ODBC Driver Versions

Additional query words:

======================================================================
Keywords          : kbcode kberrmsg kbDatabase kbDriver kbODBC kbOracle kbGrpDSVCDB kbGrpDSMDAC kbDSupport kbMDAC200 kbMDAC250 kberror 
Technology        : kbAudDeveloper kbODBCSearch kbMDACSearch kbMDAC250 kbODBCOracle206325
Version           : WINDOWS:1.0,2.5
Issue type        : kbbug
Solution Type     : kbfix

=============================================================================

THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY.