FIX: Error message when you open a cursor for a very long cursor statement in SQL Server 2005: "Attempt to access expired blob handle"

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Article ID: 955686 - View products that this article applies to.
Bug #: 50003089 (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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SYMPTOMS

In Microsoft SQL Server 2005, you open a cursor for a very long cursor statement. For example, the cursor statement exceeds 65,536 bytes (64 kilobytes). When you perform an operation that clears the procedure cache, you may receive the following error message:
Msg 3624, Level 20, State 1, Line 2
A system assertion check has failed. Check the SQL Server error log for details. Typically, an assertion failure is caused by a software bug or data corruption. To check for database corruption, consider running DBCC CHECKDB. If you agreed to send dumps to Microsoft during setup, a mini dump will be sent to Microsoft. An update might be available from Microsoft in the latest Service Pack or in a QFE from Technical Support.
Msg 0, Level 20, State 0, Line 0
A severe error occurred on the current command. The results, if any, should be discarded.
Additionally, the following error message is logged in the SQL Server 2005 error log:
Date Time SPID * BEGIN STACK DUMP:
Date Time SPID * Date Time SPID
Date Time SPID *
Date Time SPID * Location: tmpilb.cpp:2628
Date Time SPID * Expression: fFalse
Date Time SPID * SPID: SPID
Date Time SPID * Process ID: ProcessID
Date Time SPID * Description: Attempt to access expired blob handle (3)
Date Time SPID *
Date Time SPID * Input Buffer 78 bytes -
Date Time SPID * dbcc freeproccache
This issue may occur if one of the following conditions is true:
  • You run the DBCC FREEPROCCACHE statement after you close the cursor.
  • You run the DBCC FREEPROCCACHE statement, and then you close the cursor.
  • You disconnect the connection without closing the cursor.

CAUSE

This issue occurs because SQL Server tries to cache the procedure together with a reference to a binary large object (BLOB) constant. Because of the reference to the binary large object constant, the procedure cannot be cached. Therefore, an assertion error occurs when you perform an operation that clears the procedure cache.

RESOLUTION

The fix for this issue was first released in Cumulative Update 9. For more information about how to obtain this cumulative update package for SQL Server 2005 Service Pack 2, click the following article number to view the article in the Microsoft Knowledge Base:
953752 Cumulative update package 9 for SQL Server 2005 Service Pack 2
Note Because the builds are cumulative, each new fix release contains all the hotfixes and all the security fixes that were included with the previous SQL Server 2005 fix release. Microsoft recommends that you consider applying the most recent fix release that contains this hotfix. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
937137 The SQL Server 2005 builds that were released after SQL Server 2005 Service Pack 2 was released
Microsoft SQL Server 2005 hotfixes are created for specific SQL Server service packs. You must apply a SQL Server 2005 Service Pack 2 hotfix to an installation of SQL Server 2005 Service Pack 2. By default, any hotfix that is provided in a SQL Server service pack is included in the next SQL Server service pack.

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

MORE INFORMATION

For more information about what files are changed, and for information about any prerequisites to apply the cumulative update package that contains the hotfix that is described in this Microsoft Knowledge Base article, click the following article number to view the article in the Microsoft Knowledge Base:
953752 Cumulative update package 9 for SQL Server 2005 Service Pack 2

REFERENCES

For more information about the list of builds that are available after SQL Server Service Pack 2, click the following article number to view the article in the Microsoft Knowledge Base:
937137 The SQL Server 2005 builds that were released after SQL Server 2005 Service Pack 2 was released
For more information about the Incremental Servicing Model for SQL Server, click the following article number to view the article in the Microsoft Knowledge Base:
935897 An Incremental Servicing Model is available from the SQL Server team to deliver hotfixes for reported problems
For more information about how to obtain SQL Server 2005 Service Pack 2, click the following article number to view the article in the Microsoft Knowledge Base:
913089 How to obtain the latest service pack for SQL Server 2005
For more information about the new features and the improvements in SQL Server 2005 Service Pack 2, visit the following Microsoft Web site:
http://go.microsoft.com/fwlink/?LinkId=71711
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:
822499 New naming schema for Microsoft SQL Server software update packages
For more information about software update terminology, 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

Properties

Article ID: 955686 - Last Review: September 10, 2008 - Revision: 1.0
APPLIES TO
  • Microsoft SQL Server 2005 Standard Edition
  • Microsoft SQL Server 2005 Developer Edition
  • Microsoft SQL Server 2005 Enterprise Edition
  • Microsoft SQL Server 2005 Standard X64 Edition
  • Microsoft SQL Server 2005 Standard Edition for Itanium-based Systems
  • Microsoft SQL Server 2005 Enterprise X64 Edition
  • Microsoft SQL Server 2005 Enterprise Edition for Itanium-based Systems
  • Microsoft SQL Server 2005 Workgroup Edition
Keywords: 
kbhotfixrollup kbhotfixserver kbexpertiseadvanced kbsql2005engine kbfix kbpubtypekc kbqfe KB955686

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