STS question, what would you answer. NO STS employees pls!

You have written a procedure that checks for the existence of students registered for a course. This code must be executed whenever a course is deleted. Which type of trigger should be used to call this procedure?
Key trigger
Mouse trigger
Validation trigger
Transactional trigger
What would you reply, i personally went for the last one
Gus

if this code has to be executed every time a course is deleted, then use a BEFORE-EACH-ROW-Trigger on the table directly.
Only if you need the code in the forms you should write it there.
Watch out for mutating and constraining-trigger-problems in the database.
try it
Gerd

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