[V4RB] ? about cascade deletion and many to many relationship
Yennie at aol.com
Yennie at aol.com
Thu Feb 6 14:37:18 CST 2003
Setting both t1.ptr and t2.ptr to "Cascade" should work.
When you delete a record from table t1, it will delete all of the M:M links
in t12. It will not follow the t2.ptr to start deleting records from t2: that
would be following the ObjectPtr in the opposite direction.
I think. =)
Brian
> >> Say I have a link table t12 with t1.ptr and t2.ptr so I have a many
> >> to many relation between t1 and t2.
> >>
> >> Now when I delete a record t1 I want the associated link records in
> >> t12 to be deleted, but I don't want the associated records in t2 to
> >> be deleted.
>
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