From: "Foster, Stephen" <stephenlfoster@comcast.net>
To: "'Douglas McNaught'" <doug@mcnaught.org>
Cc: "'Michael Fuhr'" <mike@fuhr.org>, <pgsql-general@postgresql.org>,
	<pgsql-sql@postgresql.org>
Subject: Re: [SQL] Looking for information on PostgreSQL Stored Procedures
Date: Sun, 11 Dec 2005 10:49:18 -0600
Message-ID: <000101c5fe72$d6a71c50$2101a8c0@cfgod>
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In-Reply-To: <m2bqznh9m0.fsf@Douglas-McNaughts-Powerbook.local>

Ok, I tried it in that I'm still getting errors.  Happy to do so but
well is my errors?

-----Original Message-----
From: Douglas McNaught [mailto:doug@mcnaught.org] 
Sent: Sunday, December 11, 2005 10:39 AM
To: Foster, Stephen
Cc: 'Michael Fuhr'; pgsql-general@postgresql.org;
pgsql-sql@postgresql.org
Subject: Re: [SQL] [GENERAL] Looking for information on PostgreSQL
Stored Procedures

"Foster, Stephen" <stephenlfoster@comcast.net> writes:

> WHILE (--Lost on variable name for end of query; EmptyQueryResponse <>
> 0? --)
> 	BEGIN
> 		IF LastName = fname THEN
> 			DELETE FROM MailingList WHERE id = id;
> 		END IF;
> 		LastName := fname;
> 		FETCH NEXT FROM NewListCursor INTO fname, id;
> 	END;
> CLOSE NewListCursor;
> $BODY$
> LANGUAGE 'sql' VOLATILE;

You can't do any looping or other control structures in an SQL
function.  Use PL/pgSQL instead.

-Doug

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