FIX: The query performance is very slow when you use a fast forward-only cursor to run a query in SQL Server 2005

Article ID: 926024 - View products that this article applies to.
Bug #: 50000303 (SQL Hotfix)
Microsoft distributes Microsoft SQL Server 2005 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 2005 fix release.
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SUMMARY

This article describes the following about this hotfix release:
  • The issues that are fixed by the hotfix package
  • The prerequisites for installing the hotfix package
  • Whether you must restart the computer after you install the hotfix package
  • Whether the hotfix package is replaced by any other hotfix package
  • Whether you must make any registry changes
  • The files that are contained in the hotfix package
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SYMPTOMS

When you use a fast forward-only cursor to run a query in Microsoft SQL Server 2005, the query performance is very slow. This problem occurs when you use a fast forward-only cursor that is not dynamic. This problem does not occur when you use a fast forward-only cursor that is dynamic.
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RESOLUTION

Service pack information

To resolve this problem, obtain the latest service pack for SQL Server 2005. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
913089
(http://support.microsoft.com/kb/913089/ )
How to obtain the latest service pack for SQL Server 2005

Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:
http://support.microsoft.com/contactus/?ws=support
(http://support.microsoft.com/contactus/?ws=support)
Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

To apply this hotfix, you must have SQL Server 2005 Service Pack 1 (SP1) installed. For more information about how to obtain SQL Server 2005 Service Pack 1, click the following article number to view the article in the Microsoft Knowledge Base:
913089
(http://support.microsoft.com/kb/913089/ )
How to obtain the latest service pack for SQL Server 2005

Restart information

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other hotfixes.

Hotfix file information

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 item in Control Panel.
SQL Server 2005, 64-bit version
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File nameFile versionFile sizeDateTimePlatform
Logread.exe2005.90.2196.0522,52806-Oct-200613:26x64
Microsoft.analysisservices.adomdclient.dll9.0.2196.0543,52005-Oct-200613:11x86
Microsoft.analysisservices.adomdclient.dll9.0.2196.0543,52006-Oct-200613:26x86
Microsoft.analysisservices.deploymentengine.dll9.0.2196.0138,01605-Oct-200613:11x86
Microsoft.analysisservices.dll9.0.2196.01,215,26405-Oct-200613:11x86
Microsoft.sqlserver.mgdsqldumper.dll2005.90.2196.075,55205-Oct-200613:11x86
Microsoft.sqlserver.mgdsqldumper.dll2005.90.2196.091,42406-Oct-200613:26x64
Microsoft.sqlserver.sqlenum.dll9.0.2196.0875,29606-Oct-200613:26x86
Msasxpress.dll9.0.2196.022,30405-Oct-200613:11x86
Msasxpress.dll9.0.2196.027,42406-Oct-200613:26x64
Msgprox.dll2005.90.2196.0259,36006-Oct-200613:26x64
Msmdlocal.dll9.0.2196.015,609,63205-Oct-200613:11x86
Msmdredir.dll9.0.2196.03,990,30405-Oct-200613:11x86
Mssqlsystemresource.ldfNot Applicable524,28805-Oct-200610:28Not Applicable
Mssqlsystemresource.mdfNot Applicable40,108,03205-Oct-200610:28Not Applicable
Replprov.dll2005.90.2196.0745,24806-Oct-200613:26x64
Replrec.dll2005.90.2196.01,008,41606-Oct-200613:26x64
Sqlaccess.dll2005.90.2196.0355,10406-Oct-200613:26x86
Sqlagent90.exe2005.90.2196.0390,94406-Oct-200613:26x64
Sqlservr.exe2005.90.2196.039,351,58406-Oct-200613:26x64
Sysdbupg.sqlNot Applicable192,34621-Aug-200615:01Not Applicable
Xpstar90.dll2005.90.2196.0540,96006-Oct-200613:26x64
Xpstar90.rll2005.90.2196.0153,37606-Oct-200613:26x64
SQL Server 2005, 32-bit version
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Logread.exe2005.90.2196.0398,11205-Oct-200613:11x86
Microsoft.analysisservices.adomdclient.dll9.0.2196.0543,52005-Oct-200613:11x86
Microsoft.analysisservices.deploymentengine.dll9.0.2196.0138,01605-Oct-200613:11x86
Microsoft.analysisservices.dll9.0.2196.01,215,26405-Oct-200613:11x86
Microsoft.sqlserver.mgdsqldumper.dll2005.90.2196.075,55205-Oct-200613:11x86
Microsoft.sqlserver.sqlenum.dll9.0.2196.0908,06405-Oct-200613:11x86
Msasxpress.dll9.0.2196.022,30405-Oct-200613:11x86
Msgprox.dll2005.90.2196.0197,92005-Oct-200613:11x86
Msmdlocal.dll9.0.2196.015,609,63205-Oct-200613:11x86
Msmdredir.dll9.0.2196.03,990,30405-Oct-200613:11x86
Mssqlsystemresource.ldfNot Applicable524,28805-Oct-200610:28Not Applicable
Mssqlsystemresource.mdfNot Applicable40,108,03205-Oct-200610:28Not Applicable
Replprov.dll2005.90.2196.0547,61605-Oct-200613:11x86
Replrec.dll2005.90.2196.0782,11205-Oct-200613:11x86
Sqlaccess.dll2005.90.2196.0347,93605-Oct-200613:11x86
Sqlagent90.exe2005.90.2196.0319,26405-Oct-200613:11x86
Sqlservr.exe2005.90.2196.028,964,69605-Oct-200613:11x86
Sysdbupg.sqlNot Applicable192,34621-Aug-200615:01Not Applicable
Xpstar90.dll2005.90.2196.0292,64005-Oct-200613:11x86
Xpstar90.rll2005.90.2196.0152,86405-Oct-200613:11x86
SQL Server 2005, Itanium architecture version
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Logread.exe2005.90.2196.01,095,45605-Oct-200617:15IA-64
Microsoft.analysisservices.adomdclient.dll9.0.2196.0543,52005-Oct-200613:11x86
Microsoft.analysisservices.adomdclient.dll9.0.2196.0543,52005-Oct-200617:15x86
Microsoft.analysisservices.deploymentengine.dll9.0.2196.0138,01605-Oct-200613:11x86
Microsoft.analysisservices.dll9.0.2196.01,215,26405-Oct-200613:11x86
Microsoft.sqlserver.mgdsqldumper.dll2005.90.2196.075,55205-Oct-200613:11x86
Microsoft.sqlserver.mgdsqldumper.dll2005.90.2196.0163,10405-Oct-200617:15IA-64
Microsoft.sqlserver.sqlenum.dll9.0.2196.0875,29605-Oct-200617:15x86
Msasxpress.dll9.0.2196.022,30405-Oct-200613:11x86
Msasxpress.dll9.0.2196.055,07205-Oct-200617:15IA-64
Msgprox.dll2005.90.2196.0542,49605-Oct-200617:15IA-64
Msmdlocal.dll9.0.2196.048,592,67205-Oct-200617:15IA-64
Msmdredir.dll9.0.2196.06,244,64005-Oct-200617:15IA-64
Mssqlsystemresource.ldfNot Applicable524,28805-Oct-200610:28Not Applicable
Mssqlsystemresource.mdfNot Applicable40,108,03205-Oct-200610:28Not Applicable
Replprov.dll2005.90.2196.01,617,18405-Oct-200617:15IA-64
Replrec.dll2005.90.2196.02,141,47205-Oct-200617:15IA-64
Sqlaccess.dll2005.90.2196.0349,47205-Oct-200617:16x86
Sqlagent90.exe2005.90.2196.01,143,58405-Oct-200617:16IA-64
Sqlservr.exe2005.90.2196.072,240,92805-Oct-200617:16IA-64
Sysdbupg.sqlNot Applicable192,34621-Aug-200615:01Not Applicable
Xpstar90.dll2005.90.2196.0951,07205-Oct-200617:10IA-64
Xpstar90.rll2005.90.2196.0152,35205-Oct-200617:15IA-64
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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 SQL Server 2005 Service Pack 2.
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MORE INFORMATION

To enable this hotfix, you must turn on trace flag 4108 after you apply the hotfix. 

For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684
(http://support.microsoft.com/kb/824684/ )
Description of the standard terminology that is used to describe Microsoft software updates
For more information about fast forward-only cursors, visit the following Microsoft Developer Network (MSDN) Web site:
http://msdn2.microsoft.com/en-us/library/ms187502.aspx
(http://msdn2.microsoft.com/en-us/library/ms187502.aspx)
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Properties

Article ID: 926024 - Last Review: August 31, 2010 - Revision: 2.0
APPLIES TO
  • Microsoft SQL Server 2005 Standard Edition
  • Microsoft SQL Server 2005 Enterprise Edition
  • Microsoft SQL Server 2005 Developer Edition
  • Microsoft SQL Server 2005 Enterprise X64 Edition
  • Microsoft SQL Server 2005 Enterprise Edition for Itanium-based Systems
  • Microsoft SQL Server 2005 Standard X64 Edition
Keywords: 
kbautohotfix kbfix kbhotfixserver kbqfe KB926024
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