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Q278245: 4-Part Linked Server Queries via DB2OLEDB May Cause Exception

Article: Q278245
Product(s): Microsoft SNA Server
Version(s): 4.0 SP2,4.0 SP3
Operating System(s): 
Keyword(s): kbsna400sp2 kbsna400sp3 kbSNA400sp4fix kbSNA400PreSP4fix
Last Modified: 19-JUL-2001

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The information in this article applies to:

- Microsoft OLE DB Provider for DB2, versions 4.0 SP2, 4.0 SP3 
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SYMPTOMS
========

If a SQL Server Linked Server uses the Microsoft OLE DB Provider for DB2 to
access DB2 running on a mainframe computer with a large catalog size, the
four-part query execution may lead to slow performance, or in some cases an
Access Violation with an error message similar to the following:

  SqlDumpExceptionHandler: Process <process number> generated fatal
  exception c0000005 EXCEPTION_ACCESS_VIOLATION. SQL Server is terminating this
  process. Connection Broken

RESOLUTION
==========

To resolve this problem, obtain the latest service pack for SNA Server 4.0. For
additional information, please see the following article in the Microsoft
Knowledge Base:

  Q215838 How to Obtain the Latest SNA Server Version 4.0 Service Pack



WORKAROUND
==========

To workaround this problem, modify the four-part queries to use the Linked
Server OPENQUERY syntax. For more information on OPENQUERY, please see the SQL
Server books online.

STATUS
======

Microsoft has confirmed this to be a problem in Microsoft SNA Server version 4.0
SP2 and 4.0 SP3.

This problem was first corrected in SNA Server 4.0 Service Pack 4.

Additional query words: DB2 MVS OS/390 SNA TCP/IP TCP MSDASQL OPENROWSET Db2oledb sp2 sp3 4-part

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Keywords          : kbsna400sp2 kbsna400sp3 kbSNA400sp4fix kbSNA400PreSP4fix 
Technology        : kbAudDeveloper kbOLEDBSearch kbOLEDBProvDB2400SP2 kbOLEDBProvDB2400SP3 kbOLEDBProvSearch
Version           : :4.0 SP2,4.0 SP3
Issue type        : kbbug
Solution Type     : kbfix

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