Article ID: 235693
Article Last Modified on 3/14/2006
APPLIES TO
- Microsoft SQL Server 7.0 Standard Edition
- Microsoft SQL Server 2000 Standard Edition
This article was previously published under Q235693
BUG #: 55981 (SQLBUG_70)
SYMPTOMS
A handled access violation (AV) exception error occurs within a SELECT statement under the following conditions:
- There is an outer join and the outer table has a nonclustered unique index on the column in the JOIN condition.
- The SELECT statement contains a GROUP BY clause with two or more columns.
- A number of the columns from both tables are used in the search conditions of the WHERE clause.
- The execution plan does not cause a sort or ORDER BY.
The following is the short stack trace for the exception:
Short Stack Dump
0x006bdcab Module(sqlservr+2bdcab) (SDES::RepositionScan+39)
0x005911db Module(sqlservr+1911db) (RowsetSS::ReaquireLatchLong+b4)
0x00421775 Module(sqlservr+21775) (RowsetSS::GetData+42)
0x004ac022 Module(sqlservr+ac022) (CValSSTable::GetDataX+1c)
0x00630cc8 Module(sqlservr+230cc8) (CEs::FastCompare+7e)
0x00426876 Module(sqlservr+26876) (CDataBuffer::FGetPredicate+3a)
1999-06-23 12:20:31.87 spid9 CImageHelper::GetSym Error - The specified module could not be found.
WORKAROUND
The problem occurs when the execution plan performs a Hash Match without any sorting or ordering. The workaround is to apply either query hints or join hints that will create an execution plan that performs a sort or an order.
- Use the 'order group' query hint.
-or-
- Use the 'merge', 'loop', or 'hash' join hint.
STATUS
Microsoft has confirmed this to be a problem in SQL Server 7.0. This problem has been corrected in U.S. Service Pack 3 for Microsoft SQL Server 7.0. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
274799 INF: How to Obtain Service Pack 3 for Microsoft SQL Server 7.0 and Microsoft Data Engine (MSDE) 1.0
For more information, contact your primary support provider. Microsoft has confirmed this to be a problem in SQL Server 2000.
Keywords: kbbug kbfix KB235693
