From: | Adrian Klaver <adrian(dot)klaver(at)gmail(dot)com> |
---|---|
To: | Andreas Joseph Krogh <andreak(at)officenet(dot)no>, pgsql-sql(at)postgresql(dot)org |
Subject: | Re: Update ordered |
Date: | 2014-01-27 15:23:56 |
Message-ID: | 52E67A0C.5020605@gmail.com |
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Lists: | pgsql-sql |
On 01/27/2014 07:01 AM, Andreas Joseph Krogh wrote:
> På mandag 27. januar 2014 kl. 15:56:12, skrev Adrian Klaver
> <adrian(dot)klaver(at)gmail(dot)com <mailto:adrian(dot)klaver(at)gmail(dot)com>>:
>
> On 01/27/2014 06:36 AM, Andreas Joseph Krogh wrote:
> > Hi all.
> > I want an UPDATE query to update my project's project_number in
> > chronological order (according to the project's "created"-column) and
> > tried this:
> > with upd as(
> > select id from project order by created asc
> > ) update project p set project_number = get_next_project_number()
> from
> > upd where upd.id = p.id;
> > However, the olders project doesn't get the smalles project_number.
> > Any idea how to achive this?
>
> That would seem to depend on what get_next_project_number() does, the
> contents of which are unknown.
>
> get_next_project_number() gets the next project-number based on some
> custom logic.
> What would be the best way to update all project's project-number having
> the oldes project get the first number returned by
> get_next_project_number() etc.?
How are you sure it is not, have you tried something like below to test?:
with upd as(
select id from project order by created asc
) select p.id, p.create from project_number where upd.id = p.id;
> Thanks.
> --
> Andreas Joseph Krogh <andreak(at)officenet(dot)no> mob: +47 909 56 963
> Senior Software Developer / CTO - OfficeNet AS - http://www.officenet.no
> Public key: http://home.officenet.no/~andreak/public_key.asc
--
Adrian Klaver
adrian(dot)klaver(at)gmail(dot)com
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