Re: SQL - update table problem...

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От Shoaib Mir
Тема Re: SQL - update table problem...
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Msg-id bf54be870611130540o1a565c4gddd6820d7b8f9d0d@mail.gmail.com
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Ответ на Re: SQL - update table problem...  (Richard Huxton <dev@archonet.com>)
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You can try using a combination of a view and rule attached to it for achieving the same...

Thanks,
-------
Shoaib Mir
EnterpriseDB (www.enterprisedb.com)

On 11/13/06, Richard Huxton <dev@archonet.com> wrote:
Marko Rihtar wrote:
> Hi,
>
> i'm trying to make update on multiple tables but don't know how.
> is something like this posible with postgresql?
>
> update table1
> join table2 on ( table1.id=table2.t1)
> join table3 on (table2.id=table3.t2)
> set table1.name='test', table2.sum=table1.x+table2.y,
> table3.cell='123456789'
> where table1.id=6

I don't know of an SQL variant to handle this case. Usually people are
trying to update a single table based on joining to several others.

In your case you'll have to issue three update statements wrapped in a
transaction.

--
   Richard Huxton
   Archonet Ltd

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