From: Dag-Erling Smørgrav <des@des.no>
To: Stephan Szabo <sszabo@megazone.bigpanda.com>
Cc: pgsql-sql@postgresql.org
Subject: Re: Existential quantifier
Date: Sat, 10 Oct 2009 01:54:21 +0200
Message-ID: <86vdiop1hu.fsf@ds4.des.no> (raw)
In-Reply-To: <20091009160318.J80119@megazone.bigpanda.com>
References: <86bpkgqiv8.fsf@ds4.des.no>
<20091009160318.J80119@megazone.bigpanda.com>
Stephan Szabo <sszabo@megazone.bigpanda.com> writes:
> Not at all tested as I don't have access to my db right now, but I think
> something like one of these would work:
>
> select fs.film.title, fs.film.year
> from fs.film
> where exists(select 1 from fs.star where fs.film.id = fs.star.film
> and fs.star.last = 'Sheen');
Ah, that was exactly what I was looking for.
> select fs.film.title, fs.film.year
> from fs.film
> where fs.film.id in (select fs.star.film where fs.star.last = 'Sheen');
ITYM
select fs.film.title, fs.film.year
from fs.film
where fs.film.id in (
select fs.star.film from fs.star where fs.star.last = 'Sheen'
);
(missing FROM)
DES
--
Dag-Erling Smørgrav - des@des.no
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To: pgsql-sql@postgresql.org
Cc: des@des.no, sszabo@megazone.bigpanda.com
Subject: Re: Existential quantifier
In-Reply-To: <86vdiop1hu.fsf@ds4.des.no>
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