From: | Niklas Johansson <spot(at)tele2(dot)se> |
---|---|
To: | jonas(dot)f(dot)henriksen(at)imr(dot)no |
Cc: | pgsql-general(at)postgresql(dot)org |
Subject: | Re: full join question... |
Date: | 2006-04-05 15:26:06 |
Message-ID: | 69326C39-3B87-44B4-883E-2B6E5509285D@tele2.se |
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Thread: | |
Lists: | pgsql-general |
On 5 apr 2006, at 16.39, Jonas F. Henriksen wrote:
> Hi,
>
> I'm working with postgres and I have a question regarding a self-
> join on
> my table (se below for table definition and testdata):
> I want to retrieve all depths that have either a measuretype=1040 or a
> measuretype=4001 or both.
> All help apreciated (hope you understand what I want to do...),
Not sure I understand why you need a join... You say you want to
retrieve all depths that have certain measuretypes. Wouldn't the
following query do?
SELECT DISTINCT depth FROM testtable WHERE measuretype IN (1040, 4001);
Is there anything else you need from the query as well?
Mvh,
Niklas Johansson
Tel: 0322-108 18
Mobil: 0708-55 86 90
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