This article was previously published under Q233190
This article has been archived. It is offered "as is" and will no longer be updated.
BUG #: 54345 (SQLBUG_70)
If a UNION appears as a subquery or derived table and the UNION contains parameters or local variables, the connection will get an access violation (AV). You will receive an error message similar to the following:
ODBC: Msg 0, Level 19, State 1 SqlDumpExceptionHandler: Process 7 generated fatal exception c0000005 EXCEPTION_ACCESS_VIOLATION. SQL Server is terminating this process.
To work around this problem, try either of the following:
Do not use a UNION as a derived table.
If you do use a UNION, make sure it does not contain parameters or local variables.
Microsoft has confirmed this to be a problem in SQL Server 7.0. This problem has been corrected in U.S. Service Pack 1 for Microsoft SQL Server 7.0. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
232570INF: How to Obtain Service Pack 1 for Microsoft SQL Server 7.0 and Microsoft Data Engine (MSDE) 1.0
For more information, contact your primary support provider.