Microsoft KB Archive/165599

= FIX: Datalength Function Returns 0 for NULL Text Columns =

Article ID: 165599

Article Last Modified on 10/3/2003

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APPLIES TO


 * Microsoft SQL Server 6.5 Standard Edition

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This article was previously published under Q165599



BUG #: 16397 (WINDOWS: 6.5)



SYMPTOMS
Select datalength(textcol) from t1 returns 0 if the parameter is a text column that contains NULL.



WORKAROUND
To work around this problem, convert the NULL text column to varchar, and use the result as the parameter for the datalength function, as shown in the following example:

select datalength(convert(varchar(255),textcol)) from t1



STATUS
Microsoft has confirmed this to be a problem in Microsoft SQL Server version 6.5. This problem has been corrected in U.S. Service Pack 3 for Microsoft SQL Server version 6.5. For more information, contact your primary support provider.

Keywords: kbbug kbfix KB165599

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