On Thu, 14 Jun 2007 00:09:20 +0200, Ron Johnson <ron.l.johnson@xxxxxxx>
wrote:
On 06/13/07 16:59, PFC wrote:
Isn't it *supposed* to mis UNcommitted changes from other transactions?
Well, if the "uncommited change" is a DELETE of the row that
allowed the constraint check to pass, then when this delete is
commited, your data is no longer consistent.
The DELETE should block, no?
Why ?
Foreign keys put an ON DELETE trigger on the referenced table besides
checking the referencing column on insert/update... If you just implement
a constraint, you only get half the functionality.
