From: | Paul Thomas <paul(at)tmsl(dot)demon(dot)co(dot)uk> |
---|---|
To: | Tom Allison <tallison(at)tacocat(dot)net> |
Cc: | "pgsql-general (at) postgresql (dot) org" <pgsql-general(at)postgresql(dot)org> |
Subject: | Re: insert/update |
Date: | 2004-05-26 11:37:11 |
Message-ID: | 20040526123711.A10413@bacon |
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Thread: | |
Lists: | pgsql-general |
On 26/05/2004 11:54 Tom Allison wrote:
> I seemed to remember being able to do this but I can't find the docs.
>
> Can I run a sql query to insert new or update existing rows in one query?
>
> Otherwise I have to run a select query to see if it's there and then
> another one to update/insert.
>
> What I'm trying to do is create a counter for each key, insert a value
> of 1 or increment the value by 1 and then set another specific row
> (where key = $key) to always increment by 1.
>
> And the more I type, the more this sounds like the answer is going to be
> part function, part trigger.... Maybe I should post to 'novice' for a
> while! ;)
Use a sequence.
--
Paul Thomas
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