Article ID: 822756 - View products that this article applies to.
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BUG #: 200029 (SQLBUG_70)
A complex UPDATE statement that uses an Index Spool operation in the execution plan may cause an assertion. This assertion causes the connection that is running the update to be closed, but it does not affect the other connections to the server. A message that is similar to the following message is logged in the SQL Server error log:
2003-04-20 23:09:38.80 kernel SQL Server Assertion: File: <scanrid.cpp>, line=315 Failed Assertion = 'm_len != 0'.
2003-04-20 23:09:38.81 spid7 Error: 3624, Severity: 20, State: 1.
To work around this problem, remove the Index Spool operation in the execution plan. To do so, add an index to the table and columns that are referenced by the Seek operation in this step.
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.
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, submit a request to 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=supportNote 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. The English version of this hotfix 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.
Note Because of file dependencies, the most recent hotfix or feature that contains these files may also contain additional files.
Date Time Version Size File name ----------------------------------------------------------------- 04-Oct-2002 23:59 7.00.1081 28,944 Dbmssocn.dll 06-Sep-2002 23:55 7.00.1077 53,520 Distrib.exe 06-Sep-2002 23:55 7.00.1077 98,576 Logread.exe 05-May-2003 18:34 54,904 Opends60.dbg 05-May-2003 18:34 7.00.1093 155,920 Opends60.dll 06-Sep-2002 23:56 7.00.1077 250,128 Rdistcom.dll 06-Sep-2002 23:55 7.00.1077 82,192 Replmerg.exe 06-Sep-2002 23:56 7.00.1077 78,096 Replres.dll 17-Sep-2002 22:52 7,941 Securityhotfix.sql 06-Sep-2002 23:56 7.00.1077 160,016 Snapshot.exe 30-May-2003 04:21 59,214 Sp4_serv_uni.sql 15-Jan-2003 01:33 7.00.1085 344,064 Sqlagent.exe 06-Sep-2002 23:55 7.00.1077 45,056 Sqlcmdss.dll 16-May-2003 00:18 7.00.1094 2,629,632 Sqldmo.dll 16-May-2003 13:29 7.00.1094 81,920 Sqlmap70.dll 30-Jun-2003 22:29 7.00.1097 5,062,928 Sqlservr.exe 04-Oct-2002 23:59 7.00.1081 45,328 Ssmsso70.dll 16-May-2003 00:18 7.00.1094 24,848 Ssnmpn70.dll 26-Sep-2002 20:30 28,408 Ums.dbg 26-Sep-2002 20:27 7.00.1079 57,616 Ums.dll 16-May-2003 13:31 7.00.1094 151,552 Xpweb70.dll
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.