Re: keeping 3 tables in sync w/ each other
От | Ow Mun Heng |
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Тема | Re: keeping 3 tables in sync w/ each other |
Дата | |
Msg-id | 1190201489.15764.28.camel@neuromancer.home.net обсуждение исходный текст |
Ответ на | Re: keeping 3 tables in sync w/ each other ("Filip Rembiałkowski" <plk.zuber@gmail.com>) |
Ответы |
Re: keeping 3 tables in sync w/ each other
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Список | pgsql-general |
On Wed, 2007-09-19 at 11:05 +0100, Filip Rembiałkowski wrote: > 2007/9/19, Ow Mun Heng <Ow.Mun.Heng@wdc.com>: > > (...) > > > simulate a delete > > => delete from parent where id in (select id from child); > > DELETE 6 > > > > => select * from parent; > > id | data1 > > ----+--------- > > 2 | parent2 > > 3 | parent3 > > 4 | parent4 > > > > => select * from child; > > id | data1 > > ----+------- > > (0 rows) > > > Yes. You can however try > > SELECT FROM ... ONLY parent ... > (that's what I used in example) > > and > DELETE FROM ... ONLY parent ... Here's the obigatory Ooohhh or the simpson's "Doh!" Let me re-try this and see how it goes. Many thanks for the Ooo... ( I feel like the "green aliens" in Toy Story)
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