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From: Greg Sabino Mullane <greg@turnstep.com>
To: pgsql-sql@postgresql.org
Cc: spaceman-75e1f-20040422@ausgehaucht.sensenmann.at
Subject: Re: Counting rows from two tables in one query
Date: Sat, 10 Apr 2004 01:28:08 -0000
Message-ID: <f7bb0dd795c7fb17b53e1f20cc2cf765@biglumber.com> (raw)
In-Reply-To: <1928683.cthc5y6rJJ@weyoun.foo.at>


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> What I am trying to get is a list that shows how many records from
> 'sub_a' and 'sub_b' are referencing 'main':
                                                                                                                             
SELECT id,
  (SELECT COUNT(*) FROM sub_a WHERE sub_a.main_id=main.id),
  (SELECT COUNT(*) FROM sub_b WHERE sub_b.main_id=main.id)
FROM main ORDER BY id;
                                                                                                                             
- --
Greg Sabino Mullane greg@turnstep.com
PGP Key: 0x14964AC8 200404092128
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=7DbY
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