BUG: IF UPDATED Returns TRUE in a Trigger

 Last reviewed: April 25, 1997
Article ID: Q70851

The information in this article applies to:
  • Microsoft SQL Server version 4.2 for OS/2
  • Microsoft SQL Server, version 4.2
BUG# OS/2: 1429 (4.2) 
       NT:  890 (4.2)

SYMPTOMS

After a trigger using the IF UPDATED(colName) clause was created, an attempt to update the column colName, even if the update statement does not actually affect any rows, will cause the statements in the IF UPDATED block to be executed.

CAUSE

IF UPDATED returns TRUE for columns, regardless of whether the value has been changed.

STATUS

Microsoft has confirmed this to be a problem in SQL Server version 4.2 for OS/2 and Microsoft SQL Server version 4.2. We are researching this problem and will post new information here in the Microsoft Knowledge Base as it becomes available.

Additional query words:
Keywords : kbbug4.20 kbprg SSrvGen SSrvWinNT
Version : 4.2 | 4.2
Platform : OS/2 WINDOWS

THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY.

Last reviewed: April 25, 1997
© 1998 Microsoft Corporation. All rights reserved. Terms of Use.