Microsoft KB Archive/262462

= FIX: Conversion Errors Occur in Prepared Statements That Use UNIONs =

Article ID: 262462

Article Last Modified on 3/14/2006

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APPLIES TO


 * Microsoft SQL Server 7.0 Standard Edition
 * Microsoft OLE DB Provider for SQL Server 7.01

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This article was previously published under Q262462



BUG #: 57554 (SQLBUG_70)



SYMPTOMS
When all of the following conditions are met, unexpected error messages may occur:
 * The OLE DB Provider for Microsoft SQL Server (Sqloledb.dll) is used.
 * Two or more parameters of different datatypes are used.
 * The statement is prepared.
 * The statement contains one or more UNION operators

Depending on the exact circumstances the error messages vary widely but may look similar to the following:

SQL error 241: Syntax error converting datetime from character string.



WORKAROUND
You can use either of the two following workarounds to avoid this problem:
 * Set the Prepared property of the Microsoft ActiveX Data Object (ADO) Command object to false.


 * Use the OLE DB Provider for ODBC Drivers and the ODBC Driver for Microsoft SQL Server.



STATUS
Microsoft has confirmed this to be a problem in SQL Server 7.0. This problem has been corrected in U.S. Service Pack 3 for Microsoft SQL Server 7.0. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

274799 INF: How to Obtain Service Pack 3 for Microsoft SQL Server 7.0 and Microsoft Data Engine (MSDE) 1.0

For more information, contact your primary support provider.

Additional query words: Conversion FMTONLY sp_prepare sp_execute

Keywords: kbbug kbfix kbqfe KB262462

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