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(243382) - If a SQL Server FAST_FORWARD cursor or any dynamic cursor is specified, a SELECT * FROM ... command runs properly, but a SELECT @@Version (as well as other selects) appears to hang.

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Microsoft Knowledge Base Article

This article contents is Microsoft Copyrighted material.
©2005-©2007 Microsoft Corporation. All rights reserved. Terms of Use | Trademarks

Article ID: 243382 - Last Review: October 17, 2003 - Revision: 2.0

PRB: Select @@Version Not Working on Dynamic Cursors

This article was previously published under Q243382

SYMPTOMS

If a SQL Server FAST_FORWARD cursor or any dynamic cursor is specified, a SELECT * FROM ... command runs properly, but a SELECT @@Version (as well as other selects) appears to hang.

CAUSE

This is by design. SQL Server attempts to create a static cursor whenever a select is issued that is not based on table data. If you have specified a dynamic cursor, SQL Server will fail to create the cursor, and return a Low priority message to that effect. OLE DB will repeat the order to create a dynamic cursor, SQL Server will fail again, and this cycle will be repeated until the connection times out.

RESOLUTION

The fix for this problem is to specify a static cursor when doing this type of SELECT. ODBC has internal code to downgrade the cursor if a dynamic cursor is requested and the server can't create it. OLE DB does not.

STATUS

This behavior is by design.

APPLIES TO
  • Microsoft OLE DB Provider for SQL Server 7.0
  • Microsoft OLE DB Provider for SQL Server 7.01
  • Microsoft ActiveX Data Objects 1.0
  • Microsoft ActiveX Data Objects 2.0
  • Microsoft ActiveX Data Objects 2.1
  • Microsoft ActiveX Data Objects 2.5
  • Microsoft ActiveX Data Objects 2.6
Keywords: 
kbdatabase kbprb KB243382
Retired KB ArticleRetired KB Content Disclaimer
This article was written about products for which Microsoft no longer offers support. Therefore, this article is offered "as is" and will no longer be updated.
       

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