FIX: Access Violation in a UNION Operation on a View with a NOT (171868)

The information in this article applies to:

Microsoft SQL Server 6.5
Microsoft SQL Server 6.5 Service Pack 1 and later

This article was previously published under Q171868

SYMPTOMS

BUG #: 16071 (NT: 6.5)

A view that involves a UNION of two simple SELECT operations may cause an access violation (AV) when selected from, if one of the operands involves a SELECT with a NOT IN condition, as shown below:

   select x from tbl1
   union
   select x from tbl2 where x not in (select x from tbl1)

WORKAROUND

To work around this problem, avoid using NOT IN with a subquery.

STATUS

Microsoft has confirmed this to be a problem in Microsoft SQL Server versions 6.5 and 6.5 Service Pack 1. This problem has been corrected in U.S. Service Pack 2 for Microsoft SQL Server version 6.5. For more information, contact your primary support provider.

Modification Type:	Major	Last Reviewed:	10/3/2003
Keywords:	kbBug kbfix kbusage KB171868