Re: SQL Question

select max(lastupdate),prodid
from tablename
group by prodid


-----Original Message-----

From:  Thomas Kellerer <spam_eater@gmx.net>
Subj:  Re: [GENERAL] SQL Question
Date:  Fri Apr 15, 2005 7:24 am
Size:  621 bytes
To:  pgsql-general@postgresql.org

On 15.04.2005 13:58 Alex wrote:

> Hi,
>
> i have a table
>
> ProdId | LastUpdate
> -------+------------
> 100    | 2005-04-01
> 100    | 2005-03-01
> 100    | 2005-02-01
> 200    | 2005-04-01
> 200    | 2005-03-01
> 200    | 2005-02-01
>
> - How can i select only the newest record for each ProdId ?
>
> 100    | 2005-04-01
> 200    | 2005-04-01
>
SELECT prodid,
       lastupdate
FROM produpdate p1
WHERE lastupdate = (SELECT MAX (lastupdate) FROM produpdate p2 WHERE p2.prodid =
p1.prodid)

Thomas


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