Search Postgresql Archives

Re: combine multiple row values in to one row

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Tue, Jul 07, 2009 at 08:40:06AM -0700, David Fetter wrote:
> On Tue, Jul 07, 2009 at 01:59:35AM +0430, Lee Harr wrote:
> > 
> > Is there a generic way to do this? An aggregate maybe?
> 
> The aggregate is called array_agg() and it's in 8.4.  You can then
> wrap array_to_string() around it and get pretty formatting, as in:
> 
> SELECT idn, array_to_string(array_agg(code),', ') AS codes FROM tbl;

Oops.  That should read:

SELECT
    idn,
    array_to_string(array_agg(code),', ') AS codes
FROM tbl
GROUP BY idn; /* gotta group by :) */

Cheers,
David.
-- 
David Fetter <david@xxxxxxxxxx> http://fetter.org/
Phone: +1 415 235 3778  AIM: dfetter666  Yahoo!: dfetter
Skype: davidfetter      XMPP: david.fetter@xxxxxxxxx

Remember to vote!
Consider donating to Postgres: http://www.postgresql.org/about/donate

-- 
Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-general

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [Postgresql Jobs]     [Postgresql Admin]     [Postgresql Performance]     [Linux Clusters]     [PHP Home]     [PHP on Windows]     [Kernel Newbies]     [PHP Classes]     [PHP Books]     [PHP Databases]     [Postgresql & PHP]     [Yosemite]
  Powered by Linux