BUG: IF UPDATE() Returns False for Col Ref'd by FK Constraint

• Microsoft SQL Server versions 6.0, 6.5

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.

Additional query words: sql6 windows nt

Keywords : kbprg SSrvProg kbbug6.50 kbbug6.00
Version : 6.0 6.5
Platform : WINDOWS
Issue type :