Microsoft KB Archive/235515

= FIX: Calling IDBInfo::GetKeywords Causes AV with OLE DB Provider for ODBC (MSDASQL) =

Article ID: 235515

Article Last Modified on 6/12/2001

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APPLIES TO


 * Microsoft Open Database Connectivity 3.5
 * Microsoft Open Database Connectivity 3.51
 * Microsoft Open Database Connectivity 3.6
 * Microsoft Open Database Connectivity 3.7
 * Microsoft Data Access Components 2.0
 * Microsoft Data Access Components 2.1

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This article was previously published under Q235515



SYMPTOMS
ODBC drivers that return keywords outside the range of Absolute to Zone cause an access violation in the Microsoft OLEDB Provider for ODBC (MSDASQL) that ships with Microsoft Data Access Components (MDAC) 2.0 and 2.1 when the IDBInfo::GetKeywords method is called.



CAUSE
This occurs because of a code problem in the binary search algorithm used by MSDASQL.



RESOLUTION
To work around this behavior, modify the driver so that it does not return keywords outside the range Absolute - Zone.

For example, if the driver returns the keyword Abort, the Microsoft OLEDB Provider for ODBC (MSDASQL) gets an access violation.



STATUS
This has been fixed as of MDAC 2.5.



MORE INFORMATION
You can find the default list of Reserved Keywords in the ODBC Programmer's Reference, Volume 2. The default keywords range from ABSOLUTE to ZONE.

Keywords: kbbug kbfix kbmdac250fix kbmdacnosweep KB235515

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