FIX: Query performance may be slow and may be inconsistent when you run a query while another query that contains an IN operator with many values is compiled

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BUG #: 470397 (SQL Server 8.0)

Microsoft distributes SQL Server 2000 fixes as one downloadable file. Because the fixes are cumulative, each new release contains all the hotfixes and all the security fixes that were included with the previous SQL Server 2000 fix release.
SYMPTOMS
When you run a query on a SQL Server database, you may notice that the query performance is slow and is inconsistent.You may notice this behavior when all the following conditions are true:
  • The query performs multiple reads on the memory pages.
  • Another query that contains an IN operator with many values is compiled at the same time.
RESOLUTION

Service pack information

To resolve this problem, obtain the latest service pack for Microsoft SQL Server 2000. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
290211 How to obtain the latest SQL Server 2000 service pack

Hotfix information

The English version of this fix has the file attributes (or later) 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   ------------------------------------------------------------------------   31-May-2003  06:15  2000.80.818.0      78,400  Console.exe         24-Jun-2003  12:31  2000.80.818.0      33,340  Dbmslpcn.dll        24-Apr-2003  13:42                    786,432  Distmdl.ldf   24-Apr-2003  13:42                  2,359,296  Distmdl.mdf   29-Jan-2003  13:25                        180  Drop_repl_hotfix.sql   11-Sep-2003  14:56  2000.80.859.0   1,905,216  Dtspkg.dll          26-Aug-2003  07:46  2000.80.854.0     528,960  Dtspump.dll         23-Jun-2003  10:10  2000.80.837.0   1,557,052  Dtsui.dll           23-Jun-2003  10:10  2000.80.837.0     639,552  Dtswiz.dll          23-Apr-2003  14:21                    747,927  Instdist.sql   02-May-2003  13:26                      1,581  Inst_repl_hotfix.sql   07-Feb-2003  18:10  2000.80.765.0      90,692  Msgprox.dll         31-Mar-2003  13:37                      1,873  Odsole.sql   04-Apr-2003  13:16  2000.80.800.0      62,024  Odsole70.dll        07-May-2003  08:11  2000.80.819.0      25,144  Opends60.dll        02-Apr-2003  09:18  2000.80.796.0      57,904  Osql.exe            02-Apr-2003  10:45  2000.80.797.0     279,104  Pfutil80.dll        04-Aug-2003  05:47                    550,780  Procsyst.sql   11-Sep-2003  12:07                     12,305  Qfe469315.sql   22-May-2003  10:27                     19,195  Qfe469571.sql   05-Sep-2003  13:06                  1,090,932  Replmerg.sql   05-Sep-2003  18:48  2000.80.858.0     221,768  Replprov.dll        05-Sep-2003  18:48  2000.80.858.0     307,784  Replrec.dll         05-Sep-2003  11:30                  1,087,150  Replsys.sql   13-Aug-2003  03:58                    986,603  Repltran.sql   29-Jul-2003  07:43  2000.80.819.0     492,096  Semobj.dll          31-May-2003  05:57  2000.80.818.0     172,032  Semobj.rll   05-Aug-2003  08:36                    127,884  Sp3_serv_uni.sql   31-May-2003  12:31  2000.80.818.0   4,215,360  Sqldmo.dll          07-Apr-2003  05:14                     25,172  Sqldumper.exe       19-Mar-2003  05:50  2000.80.789.0      28,672  Sqlevn70.rll   01-Jul-2003  11:48  2000.80.834.0     180,736  Sqlmap70.dll        02-Sep-2003  14:26  2000.80.857.0     188,992  Sqlmmc.dll          02-Sep-2003  10:33  2000.80.857.0     479,232  Sqlmmc.rll   07-Feb-2003  18:10  2000.80.765.0      57,920  Sqlrepss.dll        22-Sep-2003  12:33  2000.80.863.0   7,614,545  Sqlservr.exe        25-Jul-2003  09:14  2000.80.845.0     590,396  Sqlsort.dll         07-Feb-2003  18:10  2000.80.765.0      45,644  Sqlvdi.dll          24-Jun-2003  12:31  2000.80.818.0      33,340  Ssmslpcn.dll        31-May-2003  12:31  2000.80.818.0      82,492  Ssnetlib.dll        31-May-2003  12:31  2000.80.818.0      25,148  Ssnmpn70.dll        31-May-2003  12:31  2000.80.818.0     158,240  Svrnetcn.dll        31-May-2003  06:29  2000.80.818.0      76,416  Svrnetcn.exe        30-Apr-2003  11:22  2000.80.816.0      45,132  Ums.dll             01-Jul-2003  11:49  2000.80.834.0      98,816  Xpweb70.dll    
Note Because of file dependencies, the most recent hotfix or feature that contains these files may also contain additional files.

STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. This problem was first corrected in Microsoft SQL Server 2000 Service Pack 4.
REFERENCES
For more information about software updates, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates
For more information about a related problem, click the following article numbers to view the articles in the Microsoft Knowledge Base:
816069 FIX: A query with a large IN clause can cause concurrency issues
296612 FIX: A large array of IN clause parameters parses or compiles slower on SQL Server 2000
Properties

Article ID: 829205 - Last Review: 01/17/2015 05:24:03 - Revision: 3.3

  • Microsoft SQL Server 2000 Developer Edition
  • Microsoft SQL Server 2000 Standard Edition
  • Microsoft SQL Server 2000 Enterprise Edition
  • Microsoft SQL Server 2000 Personal Edition
  • Microsoft SQL Server 2000, Workgroup Edition
  • Microsoft SQL Server 2000 Desktop Engine (Windows)
  • Microsoft SQL Server 2000 Enterprise Edition 64-bit
  • kbnosurvey kbarchive kbhotfixserver kbqfe kbqfe kbperformance kbdatabase kbquery kbmemory kbsqlserv2000presp4fix kbfix kbbug KB829205
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