Re: deleting referenced data
От | Bruno Wolff III |
---|---|
Тема | Re: deleting referenced data |
Дата | |
Msg-id | 20030826175542.GA17741@wolff.to обсуждение исходный текст |
Ответ на | Re: deleting referenced data (Richard Huxton <dev@archonet.com>) |
Ответы |
Re: deleting referenced data
Re: deleting referenced data |
Список | pgsql-general |
On Tue, Aug 26, 2003 at 18:34:04 +0100, Richard Huxton <dev@archonet.com> wrote: > On Tuesday 26 August 2003 15:06, Andreas Fromm wrote: > > > > When I delete a record of the table realtions I also want to delete the > > record on the data-tables if there is no other record referencing them. > > How can I do this? > > You want to add "ON DELETE CASCADE" to the REFERENCES... clause. > See the SQL reference for full syntax details. I don't think that is what he wants. He seems to want to go in the other direction. That is going to require custom triggers and probably adding a reference count column to data-tables.
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