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help / color / mirror / Atom feedFrom: Adrian Klaver <adrian.klaver@gmail.com>
To: Andreas Joseph Krogh <andreak@officenet.no>
To: pgsql-sql@postgresql.org
Subject: Re: Update ordered
Date: Mon, 27 Jan 2014 07:23:56 -0800
Message-ID: <52E67A0C.5020605@gmail.com> (raw)
In-Reply-To: <OfficeNetEmail.22.db4f408b1acc02b2.143d43670c9@prod2>
References: <OfficeNetEmail.22.db4f408b1acc02b2.143d43670c9@prod2>
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On 01/27/2014 07:01 AM, Andreas Joseph Krogh wrote:
> På mandag 27. januar 2014 kl. 15:56:12, skrev Adrian Klaver
> <adrian.klaver@gmail.com <mailto:adrian.klaver@gmail.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@officenet.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.klaver@gmail.com
--
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Cc: adrian.klaver@gmail.com, andreak@officenet.no
Subject: Re: Update ordered
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