Grant Fritchey (9/20/2012)
Nope.You'd have to write a trigger to do something like that.
If the insert/update is made by a SP what would be better: change the SP the check if the referenced value exists or write the trigger? If the trigger was used what would be the most appropriate: BEFORE, INSTEAD, FOR or AFTER (don't think AFTER makes any sense here..).
Thanks,
Pedro