Message-Id: <5.1.0.14.0.20021220214822.02d7e360@mail.rhyme.com.au>
Date: Fri, 20 Dec 2002 21:51:19 +1100
To: Gary Stainburn <gary.stainburn@ringways.co.uk>,
	pgsql-sql@postgresql.org
From: Philip Warner <pjw@rhyme.com.au>
Subject: Re: Help on (sub)-select
In-Reply-To: <200212201021.50475.gary.stainburn@ringways.co.uk>
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"; format=flowed

At 10:21 AM 20/12/2002 +0000, Gary Stainburn wrote:
>nymr=# select r.*, s.tally from roster r,
>nymr-#     (select count(*) as tally from roster_staff where
>nymr(#      rsdate = '2002-01-01' and rsgid = 11 and rsgsid = 2) as s
>nymr-#   where rodate = '2002-01-01' and rogid = 11 and rogsid = 2;
>    rodate   | rogid | rogsid | rorequired | rooptional | tally
>------------+-------+--------+------------+------------+-------
>  2002-01-01 |    11 |      2 |          0 |          1 |     2
>(1 row)

Try something like:

     select r.*, count(*) from roster r, roster_staff s
     where rsdate = rodate and rsgid = rogid and rsgsid = rogid
     group by r.*

or

     select r.*, (select count(*) from roster_staff s
     where rsdate = rodate and rsgid = rogid and rsgsid = rogid
     ) roster r

May not be exactly right, but you should get the idea


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