Article ID: 246598 - Last Review: March 14, 2006 - Revision: 2.2

FIX: Columns Listed Multiple Times in GROUP BY WITH CUBE Clause Cause Access Violation

View products that this article applies to.
This article was previously published under Q246598
BUG #: 53838 (SQLBUG_70)

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SYMPTOMS

When the same column is listed multiple times in a GROUP BY clause that uses the CUBE operator, you may receive the following Access Violation (AV) error message:
ODBC: Msg 0, Level 19, State 1
SqlDumpExceptionHandler: Process 7 generated fatal exception c0000005 EXCEPTION_ACCESS_VIOLATION. SQL Server is terminating this process.
[Microsoft][ODBC SQL Server Driver][TCP/IP Sockets]ConnectionCheckForData ((null)()).
[Microsoft][ODBC SQL Server Driver][TCP/IP Sockets]General network error. Check your network documentation.

Connection Broken
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WORKAROUND

Use table aliases and qualify the multiple instances of the column in the GROUP BY clause with the aliases.
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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  (http://support.microsoft.com/kb/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.
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MORE INFORMATION

Steps To Reproduce The Problem

Query 1 demonstrates the problem while Query 2 uses table aliases to work around the problem.

Query 1

USE tempdb
GO
DROP TABLE t1
GO
CREATE TABLE t1(c1 INT)
GO
SELECT c1
FROM t1
GROUP BY c1, c1, c1, c1
WITH CUBE
GO

Query 2

USE tempdb
GO
DROP TABLE t1
go
CREATE TABLE t1(c1 INT)
GO
SELECT a.c1
FROM t1 a, t1 b, t1 c, t1 d
GROUP BY a.c1, b.c1, c.c1, d.c1
WITH CUBE
GO
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APPLIES TO
  • Microsoft SQL Server 7.0 Standard Edition
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Keywords: 
kbbug kbfix KB246598
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