Re: Alter table to "on update cascade"
| От | Richard Broersma |
|---|---|
| Тема | Re: Alter table to "on update cascade" |
| Дата | |
| Msg-id | AANLkTim0_j4QhMxm0PQ22MuOXR4iPW1zz=t5PYeRUX_1@mail.gmail.com обсуждение исходный текст |
| Ответ на | Re: Alter table to "on update cascade" (David Fetter <david@fetter.org>) |
| Ответы |
Re: Alter table to "on update cascade"
Re: Alter table to "on update cascade" |
| Список | pgsql-general |
On Wed, Nov 17, 2010 at 8:43 AM, David Fetter <david@fetter.org> wrote:
> You can do it like this:
>
> BEGIN;
> ALTER TABLE foo DROP CONSTRAINT your_constraint;
> ALTER TABLE foo ADD FOREIGN KEY ...;
> COMMIT;
The nice thing about the ALTER TABLE statement is that you can do it
in one command:
ALTER TABLE foo
DROP CONSTRAINT your_constraint,
ADD CONSTRAINT your_constraint FOREIGN KEY ...
ON UPDATE CASCADE ON DELETE RESTRICT;
--
Regards,
Richard Broersma Jr.
Visit the Los Angeles PostgreSQL Users Group (LAPUG)
http://pugs.postgresql.org/lapug
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