Microsoft KB Archive/818335

= FIX: A query may run slowly if the query contains a multi-table join and one of the joins is a view =

Article ID: 818335

Article Last Modified on 10/11/2005

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APPLIES TO


 * Microsoft SQL Server 2000 Standard Edition

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BUG #: 469206 (SQL Server 8.0)



SYMPTOMS
After you upgrade to Microsoft SQL Server 2000 post-Service Pack 2 (SP2) or a later build including SQL Server 2000 SP3, a query may take a much longer time to run, even though the query runs in seconds in SQL Server 2000 SP2. This problem occurs if both the following conditions are true:
 * The query has multitable joins, and one of the joins is a view.
 * The view has multitable joins, and a corelated subquery.



RESOLUTION
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Microsoft SQL Server 2000 service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.   Date         Time   Version         Size             File name ---  26-Feb-2003  03:41  2000.80.777.0      29,244 bytes  Dbmslpcn.dll 08-Feb-2003 05:43                    786,432 bytes  Distmdl.ldf 08-Feb-2003 05:43                  2,359,296 bytes  Distmdl.mdf 30-Jan-2003 01:55                        180 bytes  Drop_repl_hotfix.sql 07-Apr-2003 19:15  2000.80.801.0   1,557,052 bytes  Dtsui.dll 30-Jan-2003 05:18                    746,470 bytes  Instdist.sql 30-Jan-2003 01:55                      1,402 bytes  Inst_repl_hotfix.sql 08-Feb-2003 06:40  2000.80.765.0      90,692 bytes  Msgprox.dll 01-Apr-2003 02:07                      1,873 bytes  Odsole.sql 05-Apr-2003 01:46  2000.80.800.0      62,024 bytes  Odsole70.dll 02-Apr-2003 21:48  2000.80.796.0      57,904 bytes  Osql.exe 02-Apr-2003 23:15  2000.80.797.0     279,104 bytes  Pfutil80.dll 04-Apr-2003 21:27                  1,083,467 bytes  Replmerg.sql 04-Apr-2003 21:53  2000.80.798.0     221,768 bytes  Replprov.dll 08-Feb-2003 06:40  2000.80.765.0     307,784 bytes  Replrec.dll 01-Apr-2003 02:23                  1,084,828 bytes  Replsys.sql 16-Apr-2003 22:39                    115,892 bytes  Sp3_serv_uni.sql 07-Apr-2003 17:44                     25,172 bytes  Sqldumper.exe 19-Mar-2003 18:20  2000.80.789.0      28,672 bytes  Sqlevn70.rll 28-Feb-2003 01:34  2000.80.778.0     176,696 bytes  Sqlmap70.dll 08-Feb-2003 06:40  2000.80.765.0      57,920 bytes  Sqlrepss.dll 17-Apr-2003 04:19  2000.80.807.0   7,540,817 bytes  Sqlservr.exe 08-Feb-2003 06:40  2000.80.765.0      45,644 bytes  Sqlvdi.dll 26-Feb-2003 03:41  2000.80.777.0      29,244 bytes  Ssmslpcn.dll 26-Feb-2003 03:41  2000.80.777.0      82,492 bytes  Ssnetlib.dll 28-Feb-2003 01:34  2000.80.778.0      98,872 bytes  Xpweb70.dll Note Because of file dependencies, the most recent hotfix or feature that contains the files may also contain additional files.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.

Keywords: kbbug kbfix kbqfe kbsqlserv2000presp4fix kbhotfixserver KB818335

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