From: Bruno Wolff III <bruno@wolff.to>
To: oheinz@stud.fbi.fh-darmstadt.de
Cc: pgsql-sql@postgresql.org
Subject: Re: Problem using Subselect results
Date: Mon, 28 Jul 2003 11:41:29 -0500
Message-ID: <20030728164129.GA25693@wolff.to> (raw)
In-Reply-To: <1058964708.3f1e84e407a8d@stud.fbi.fh-darmstadt.de>
References: <1058964708.3f1e84e407a8d@stud.fbi.fh-darmstadt.de>
On Wed, Jul 23, 2003 at 14:51:48 +0200,
oheinz@stud.fbi.fh-darmstadt.de wrote:
> I want to use the result of a subselect as condition of another one.
The two selects you use ar both from items at the same level and hence can't
reference one another. In your example below you could just use a join.
> CREATE VIEW my_view AS SELECT b,c
> (SELECT a, b FROM table2 WHERE b=1) my_ab,
> (SELECT c FROM table3, my_ab WHERE table3.a=my_ab.a) my_c;
Something like:
CREATE VIEW my_view AS
SELECT table2.b, table3.c
from table2, table3
where
table2.b = 1 and
table2.a = table3.a;
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To: pgsql-sql@postgresql.org
Cc: bruno@wolff.to, oheinz@stud.fbi.fh-darmstadt.de
Subject: Re: Problem using Subselect results
In-Reply-To: <20030728164129.GA25693@wolff.to>
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