From: La Chi <the_man.inmee@yahoo.com>
To: pgsql-sql@postgresql.org <pgsql-sql@postgresql.org>
Subject: How to write cursors
Date: Tue, 3 Apr 2012 00:44:20 -0700 (PDT)
Message-ID: <1333439060.57914.YahooMailNeo@web162204.mail.bf1.yahoo.com> (raw)
Hello everyone,
i have created this function in which i simply want to display a column values through a cursor , but unfortunately i am not getting the column values , this function is showing me simple column name but not the fields in column.
CREATE OR REPLACE FUNCTION foo(id int) returns table(user_id int) as
$BODY$
DECLARE r int;
DECLARE rs cursor for Select userid from customer where area ='new_york';
BEGIN
open rs ;
fetch next from rs into r;
while (found) loop
fetch Next from rs into r;
END loop;
close rs;
END;
$BODY$
LANGUAGE plpgsql;
i simply want to show all the record from customer table where area is New York but with the help of cursors.
thanks
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Reply to all the recipients using the --to and --cc options:
reply via email
To: pgsql-sql@postgresql.org
Cc: the_man.inmee@yahoo.com
Subject: Re: How to write cursors
In-Reply-To: <1333439060.57914.YahooMailNeo@web162204.mail.bf1.yahoo.com>
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox