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Re: pointer to feature comparisons, please

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On 06/13/07 17:23, PFC wrote:
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

Foreign keys that silently, automatic DELETE records?

Did I read that correctly?

besides checking the referencing column on insert/update... If you just implement a constraint, you only get half the functionality.

But when I define a FK *constraint*, that's all I *want*!

--
Ron Johnson, Jr.
Jefferson LA  USA

Give a man a fish, and he eats for a day.
Hit him with a fish, and he goes away for good!



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