Microsoft KB Archive/153989

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BUG: SIGN on Null Values Can Cause an Access Violation

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Q153989

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The information in this article applies to:


 * Microsoft SQL Server version 6.0

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SYMPTOMS
Using the SIGN function with an arithmetic operator on numeric or decimal columns that contain NULL values can cause a handled exception that terminates the client thread on the server.

WORKAROUND
If the SIGN function must be used on a decimal or numeric column, then create the column with a property of NOT NULL. If you require NULL values consider using a REAL or FLOAT column.

STATUS
Microsoft has confirmed this to be a problem in Microsoft SQL Server versions 6.0 and 6.5. We are researching this problem and will post new information here in the Microsoft Knowledge Base as it becomes available.

Additional query words: datatype AV exception.

Keywords : kbSQLServ650bug

Issue type :

Technology : kbSQLServSearch kbAudDeveloper kbSQLServ600