FIX: Subquery in IN Clause with DISTINCT and JOINs May Cause Access Violation (246893)


The information in this article applies to:

  • Microsoft SQL Server 7.0
This article was previously published under Q246893
BUG #: 56495 (SQLBUG_70)
       56186 (SQLBUG_70)

SYMPTOMS

A SELECT statement causes a handled access violation (AV) exception error if all of the following conditions are true:
  • The SELECT statement contains a WHERE column IN( ) clause.
  • The IN clause contains an uncorrelated subquery.
  • The subquery uses SELECT DISTINCT.
  • The subquery contains at least two INNER JOINs.
  • The subquery contains several restrictions in the WHERE clause.

WORKAROUND

To work around this problem, replace the IN clause with an EXISTS clause, thereby correlating the subquery to the main query.

STATUS

Microsoft has confirmed this to be a problem in SQL Server 7.0. This problem has been corrected in U.S. Service Pack 2 for Microsoft SQL Server 7.0. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

254561 INF: How to Obtain Service Pack 2 for Microsoft SQL Server 7.0 and Microsoft Data Engine (MSDE) 1.0

For more information, contact your primary support provider.
Modification Type:MajorLast Reviewed:3/14/2006
Keywords:kbBug kbfix KB246893
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