Re: Update ordered

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