From: | Jeff Eckermann <jeff_eckermann(at)yahoo(dot)com> |
---|---|
To: | Tom Allison <tallison(at)tacocat(dot)net> |
Cc: | pgsql-general(at)postgresql(dot)org |
Subject: | Re: insert/update |
Date: | 2004-05-27 13:48:43 |
Message-ID: | 20040527134843.82786.qmail@web20803.mail.yahoo.com |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-general |
--- Tom Allison <tallison(at)tacocat(dot)net> wrote:
> Jeff Eckermann wrote:
> > --- Tom Allison <tallison(at)tacocat(dot)net> 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?
>
> So I have to watch out for transactions on this?
> Essentially what I'm trying to do is one of the
> following two:
>
> if exists update a field to field+1 on one record
> if it doesn't exist, insert a row with field = 1
>
I'm not sure what you are asking here that is not
already covered. I suggest you spend some time
reading the documentation on concurrency, and
searching the archives for some of the lengthy past
discussions on this topic.
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