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= <span id="KB867746"></span>FIX: The UPDATE query blocks the SELECT query when you run an UPDATE query and a SELECT query at the same time in SQL Server 2000 =<br />
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Article ID: 867746<br />
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Article Last Modified on 11/2/2007<br />
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APPLIES TO<br /><br />
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* Microsoft SQL Server 2000 Desktop Engine (Windows)<br />
* Microsoft SQL Server 2000 Developer Edition<br />
* Microsoft SQL Server 2000 Enterprise Edition<br />
* Microsoft SQL Server 2000 Personal Edition<br />
* Microsoft SQL Server 2000 Standard Edition<br />
* Microsoft SQL Server 2000 Workgroup Edition<br />
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BUG #: 471449 (SQL Server 8.0)<br />
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''Microsoft distributes Microsoft 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.''<br />
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<div class="summary_section"><br />
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== SUMMARY ==<br />
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This article describes the following about this hotfix release:<br />
* The issues that are fixed by this hotfix package<br />
* The prerequisites for installing the hotfix package<br />
* Whether you must restart the computer after you install the hotfix package<br />
* Whether the hotfix package is replaced by any other hotfix package<br />
* Whether you must make any registry changes<br />
* The files that are contained in the hotfix package<br />
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== SYMPTOMS ==<br />
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In Microsoft SQL Server 2000, when you run an UPDATE query and a SELECT query at the same time, the UPDATE query blocks the SELECT query. You experience this problem when you run a SELECT statement that uses the TOP clause and the READPAST locking hint.<br /><br />
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'''Note''' The SELECT statement successfully runs without being blocked when you remove the TOP clause.<br /><br />
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For a list of all publicly released SQL Server 2000 Post-Service Pack 3a hotfixes, click the following article number to view the article in the Microsoft Knowledge Base:<br />
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[[../810185|810185]] SQL Server 2000 hotfix update for SQL Server 2000 Service Pack 3 and 3a<br />
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<div class="cause_section"><br />
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== CAUSE ==<br />
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This problem may occur when there is a clustered index on a table. When there is a clustered index on a table, the READPAST locking hint may not read past the obtained locks. The row that is locked is a key within an index.<br />
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== RESOLUTION ==<br />
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=== Service pack information ===<br />
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To resolve this problem, obtain the latest service pack for SQL Server 2000. For more information, click the following article number to view the article in the Microsoft Knowledge Base:<br />
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[[../290211|290211]] How to obtain the latest SQL Server 2000 service pack<br />
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=== Hotfix information ===<br />
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==== Prerequisites ====<br />
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<ul><br />
<li>Microsoft SQL Server 2000 Service Pack 3 (SP3)<br /><br />
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For information about how to obtain SQL Server 2000 SP3, click the following article number to view the article in the Microsoft Knowledge Base:<br />
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<p>[[../290211|290211]] How to obtain the latest SQL Server 2000 service pack</p><br />
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</div></li></ul><br />
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==== Restart information ====<br />
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You do not have to restart the computer after you apply this hotfix.<br />
==== Registry information ====<br />
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You do not have to change the registry.<br />
==== Hotfix file information ====<br />
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This hotfix contains only those files that are required to correct the issues that this article lists. This hotfix may not contain all the files that you must have to fully update a product to the latest build.<br /><br />
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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.<br />
<pre class="fixed_text"> Date Time Version Size File name<br />
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10-Oct-2003 18:48 1,581 Inst_repl_hotfix.sql<br />
08-Jun-2004 17:14 2000.80.949.0 352,828 Isqlw.exe <br />
08-Jun-2004 17:14 2000.80.949.0 82,492 Itwiz.exe <br />
08-Jun-2004 17:14 2000.80.949.0 90,692 Msgprox.dll <br />
19-May-2004 23:43 8.11.40209.0 209,408 Mssdi98.dll <br />
08-Jun-2004 17:14 2000.80.949.0 62,024 Odsole70.dll <br />
08-Jun-2004 17:15 2000.80.949.0 25,144 Opends60.dll <br />
08-Jun-2004 17:16 82,944 Opends60.pdb<br />
08-Jun-2004 17:14 2000.80.949.0 57,904 Osql.exe <br />
08-Jun-2004 17:14 2000.80.949.0 279,104 Pfutil80.dll <br />
10-Oct-2003 18:37 550,780 Procsyst.sql<br />
08-Apr-2004 21:42 12,305 Qfe469315.sql<br />
08-Apr-2004 21:42 19,195 Qfe469571.sql<br />
08-Jun-2004 15:52 1,104,848 Replmerg.sql<br />
08-Jun-2004 17:14 2000.80.949.0 221,768 Replprov.dll <br />
08-Jun-2004 17:14 2000.80.949.0 307,784 Replrec.dll <br />
08-Jun-2004 16:12 2000.80.949.0 159,813 Replres.rll<br />
10-Oct-2003 18:48 1,087,150 Replsys.sql<br />
10-Oct-2003 18:48 986,603 Repltran.sql<br />
08-Jun-2004 17:14 2000.80.949.0 287,304 Rinitcom.dll <br />
08-Jun-2004 17:14 2000.80.949.0 78,416 Sdiclnt.dll <br />
08-Jun-2004 17:14 2000.80.949.0 66,112 Semmap.dll <br />
08-Jun-2004 17:14 2000.80.949.0 57,916 Semnt.dll <br />
08-Jun-2004 17:14 2000.80.949.0 492,096 Semobj.dll <br />
08-Jun-2004 16:37 2000.80.949.0 172,032 Semobj.rll<br />
08-Jun-2004 17:14 2000.80.949.0 53,832 Snapshot.exe <br />
12-Mar-2004 03:10 117,834 Sp3_serv_uni.sql<br />
08-Jun-2004 17:13 2000.80.949.0 28,672 Sqlagent.dll <br />
08-Jun-2004 17:14 2000.80.949.0 311,872 Sqlagent.exe <br />
08-Jun-2004 17:13 2000.80.949.0 168,001 Sqlakw32.dll <br />
08-Jun-2004 17:15 2000.80.949.0 33,344 Sqlctr80.dll <br />
08-Jun-2004 17:15 2000.80.949.0 4,215,360 Sqldmo.dll <br />
08-Jun-2004 17:14 25,172 Sqldumper.exe <br />
08-Jun-2004 15:49 2000.80.949.0 28,672 Sqlevn70.rll<br />
08-Jun-2004 17:15 2000.80.949.0 180,792 Sqlmap70.dll <br />
08-Jun-2004 17:15 2000.80.949.0 188,992 Sqlmmc.dll <br />
08-Jun-2004 16:41 2000.80.949.0 479,232 Sqlmmc.rll<br />
08-Jun-2004 17:15 2000.80.949.0 401,984 Sqlqry.dll <br />
08-Jun-2004 17:15 2000.80.949.0 57,920 Sqlrepss.dll <br />
08-Jun-2004 17:15 2000.80.949.0 7,581,777 Sqlservr.exe <br />
08-Jun-2004 17:15 13,050,880 Sqlservr.pdb<br />
08-Jun-2004 17:15 2000.80.949.0 590,396 Sqlsort.dll <br />
08-Jun-2004 17:15 2000.80.949.0 45,644 Sqlvdi.dll <br />
08-Jun-2004 17:15 2000.80.949.0 106,588 Sqsrvres.dll <br />
08-Jun-2004 17:15 2000.80.949.0 33,340 Ssmslpcn.dll <br />
08-Jun-2004 17:15 2000.80.949.0 82,492 Ssnetlib.dll <br />
08-Jun-2004 17:15 2000.80.949.0 25,148 Ssnmpn70.dll <br />
08-Jun-2004 17:15 2000.80.949.0 123,456 Stardds.dll <br />
08-Jun-2004 17:15 2000.80.949.0 158,240 Svrnetcn.dll <br />
08-Jun-2004 17:14 2000.80.949.0 76,416 Svrnetcn.exe <br />
08-Jun-2004 17:15 2000.80.949.0 49,228 Ums.dll <br />
08-Jun-2004 17:15 132,096 Ums.pdb<br />
08-Jun-2004 17:15 2000.80.949.0 98,872 Xpweb70.dll</pre><br />
'''Note''' Because of file dependencies, the most recent hotfix or feature that contains these files may also contain additional files.<br />
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<div class="workaround_section"><br />
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== WORKAROUND ==<br />
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To work around this problem, use one of the following methods:<br />
* Remove the TOP clause from the SELECT query.<br />
* Use the HASH JOIN hint in the SELECT query.<br /><br />
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'''Note''' You may experience a decrease in performance when you use the HASH JOIN hint.<br />
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<div class="status_section"><br />
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== STATUS ==<br />
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Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section. This problem was first corrected in SQL Server 2000 Service Pack 4.<br />
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<div class="moreinformation_section"><br />
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== MORE INFORMATION ==<br />
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For more information about the naming schema for SQL Server updates, click the following article number to view the article in the Microsoft Knowledge Base:<br />
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[[../822499|822499]] New naming schema for Microsoft SQL Server software update packages<br />
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For more information about the terminology that Microsoft uses when Microsoft corrects software after it is released, click the following article number to view the article in the Microsoft Knowledge Base:<br />
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[[../824684|824684]] Description of the standard terminology that is used to describe Microsoft software updates<br />
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Keywords: kbsqlserv2000presp4fix kbfix kbbug kbpubtypekc kbhotfixserver kbqfe KB867746<br />
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