FIX: A deadlock condition may occur when you call the SQLFetch function or the SQLFetchScroll function in MDAC 2.8
This article has been archived. It is offered "as is" and will no longer be updated.
When you call the SQLFetch function or the SQLFetchScroll function to return a result set from Microsoft SQL Server, a deadlock condition may occur. The deadlock condition occurs when the following conditions are true:
- You use the LOCK_TIMEOUT setting in SQL Server.
- You set the rowset size to a value that is larger than 1.
Note This problem does not occur when you set the rowset size to a value of 1.
Hotfix informationA 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: 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.
PrerequisitesNo prerequisites are required.
Restart requirementYou must restart your computer after you apply this hotfix.
Hotfix replacement informationThis hotfix does not replace any other hotfixes.
File informationThe 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.
Date Time Version Size File name --------------------------------------------------------- 03-Dec-2004 15:20 2000.85.1056.0 73,728 Dbnetlib.dll 03-Dec-2004 15:21 2000.85.1056.0 28,672 Dbnmpntw.dll 03-Dec-2004 15:20 2.80.1056.0 315,392 Msadce.dll 03-Dec-2004 15:20 2.80.1056.0 135,168 Msadco.dll 03-Dec-2004 15:20 2.80.1056.0 49,152 Msadcs.dll 03-Dec-2004 15:20 2.80.1056.0 147,456 Msadds.dll 03-Dec-2004 15:20 2.80.1056.0 512,000 Msado15.dll 03-Dec-2004 15:20 2.80.1056.0 163,840 Msadomd.dll 03-Dec-2004 15:20 2.80.1056.0 184,320 Msadox.dll 03-Dec-2004 15:20 2.80.1056.0 53,248 Msadrh15.dll 03-Dec-2004 15:20 2.80.1056.0 225,280 Msdaora.dll 03-Dec-2004 15:20 2.80.1056.0 192,512 Msdaprst.dll 03-Dec-2004 15:20 2.80.1056.0 147,456 Msdart.dll 03-Dec-2004 15:20 2.80.1056.0 303,104 Msdasql.dll 03-Dec-2004 15:21 2.575.1056.0 139,264 Msorcl32.dll 03-Dec-2004 15:20 3.525.1056.0 221,184 Odbc32.dll 03-Dec-2004 15:21 2000.85.1056.0 24,576 Odbcbcp.dll 03-Dec-2004 15:20 2.80.1056.0 442,368 Oledb32.dll 03-Dec-2004 15:20 2000.85.1056.0 503,808 Sqloledb.dll 03-Dec-2004 15:20 2000.85.1056.0 401,408 Sqlsrv32.dll 03-Dec-2004 15:08 2000.85.1056.0 208,896 Sqlxmlx.dll
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
When you call the SQLFetch function or the SQLFetchScroll function, a lock time-out error is not returned. Because a lock time-out error is not returned, your application cannot react appropriately, and the application may stop responding (hang).
For additional information, click the following article numbers to view the articles in the Microsoft Knowledge Base:
839801 FIX: Hotfixes are available for MDAC 2.8
824684 Description of the standard terminology that is used to describe Microsoft software updates
Article ID: 890470 - Last Review: 01/17/2015 09:29:49 - Revision: 3.1
Microsoft Data Access Components 2.8
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