Обсуждение: Mechanics of UpDate:Cascade

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Mechanics of UpDate:Cascade

От
beyaNet Consultancy
Дата:
Hi,
could someone please explain to me the mechanics of an UpDate:Cascade? 
Delete:Cascade I fully understand but not Update. I have 2 tables A and 
B. On B I have created a foreign key on user_id in both B and A for 
Update and Delete cascade. If I delete from A it deletes all from B. If 
I update A what happens in B?

regards


Andrew