BUG: IF UPDATE() Returns False for Col Ref'd by FK Constraint (138763)
The information in this article applies to:
- Microsoft SQL Server 6.0
- Microsoft SQL Server 6.5
This article was previously published under Q138763
BUG#: 11796 (6.00)
SYMPTOMS
The IF UPDATE <column> clause will return FALSE in a UPDATE trigger if the
<column> is referenced by a foreign key constraint. The IF UPDATE <column>
clause will return TRUE in an INSERT trigger or if the foreign key
constraint on the referencing table is removed.
WORKAROUND
Remove the foreign key from the referencing table.
STATUS
Microsoft has confirmed this to be a problem in Microsoft SQL Server 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.
MORE INFORMATION
Note that the update trigger will only get fired in this type of situation
if the update does not violate the foreign key constraint. By design, SQL
Server prevents a trigger from executing if a constraint is violated.
| Modification Type: | Major | Last Reviewed: | 10/16/2003 |
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| Keywords: | kbBug kbProgramming KB138763 |
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