From: | "Penchalaiah P(dot)" <penchalaiahp(at)infics(dot)com> |
---|---|
To: | <pgsql-sql(at)postgresql(dot)org> |
Subject: | set return function is returning a single record, multiple times, how can i get all the records in the table( description inside ) |
Date: | 2006-04-28 10:44:10 |
Message-ID: | A70AE049E81A6A40879D5DC0AC8C38C905FA27A3@venus.infics.com |
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Thread: | |
Lists: | pgsql-sql |
Hi
Please spare some time to provide a solution for the described
problem :
I am using set returning functions to return all the records from a
table named pss ,
But what I am getting is the first record is returned as many times ,
the number of records present in the rank_master:
I am giving a detailed description below please check it out
1) The following query creates pss table:
create table pss( name varchar(20), num integer, phno integer );
2) insert three records in to pss :
insert into pss values('penchal',1,420);
insert into pss values('joe',2,421);
insert into pss values('ali',3,422);
3) create an user defines type of variable named structrankmaster2 (
something like a structure to hold a record ) :
create type Structrankmaster2 as (name varchar(20), num integer, phno
integer);
4) The following is the function that retrieves the records from pss :
CREATE or replace FUNCTION ftoc9() RETURNS setof structrankmaster2
LANGUAGE 'plpgsql'
AS' DECLARE
rowdata pss%rowtype;
BEGIN for i in 1..3 loop
select * into rowdata from pss ;
return next rowdata ;
end loop;
return;
end';
5) now call the function from command prompt:
Select * from ftoc9();
6) the following is the output that I am getting ( i.e the first row
repeated 3 times ) :
name | num | phno
---------+-----+------
penchal | 1 | 420
penchal | 1 | 420
penchal | 1 | 420
(3 rows)
7) what exactly I should be getting is :
name | num | phno
---------+-----+------
penchal | 1 | 420
joe | 2 | 421
penchal | 3 | 422
(3 rows)
Please provide a solution for this so that I can get
name | num | phno
---------+-----+------
penchal | 1 | 420
joe | 2 | 421
penchal | 3 | 422
(3 rows)
Thanks & regards
Thanks & Regards
Penchal reddy | Software Engineer
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