From: Albrecht Berger <berger1517@gmx.ch>
To: pgsql <pgsql-sql@postgresql.org>
Subject: sql group by statement
Date: Fri, 13 Sep 2002 12:29:21 +0200
Message-ID: <002f01c25b10$6db4b940$a07ba8c0@wxp> (raw)
Hello,
I have a problem, which I'm not able to solve with a simple query :
I need a resultset with distinct id's, but the max val2 of each id.
I tried to group by id, but though I need the pk in my resultset
I have to group it too, which "destroys" the group of val2.
Can this be done without a huge query ?
Table :
pk id val1 val2
1 1 2 3
2 1 2 4
3 2 1 1
4 1 0 5
5 2 1 8
Needed Result :
pk id val1 val2
4 1 0 5
5 2 1 8
Thx
berger
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To: pgsql-sql@postgresql.org
Cc: berger1517@gmx.ch
Subject: Re: sql group by statement
In-Reply-To: <002f01c25b10$6db4b940$a07ba8c0@wxp>
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