Hi there, new here and have question

Hi Hendra,

create function listofemployeebasedondepartment(id_dept int) $$
declare
resultset ??;
begin
select * into resultset from employee where id_dept = id_dept;
return resultset;
end
$$ language 'plpgsql';

I believe you get what I want
But I just couldn't finish the code since I miss something
I manage to find 'setof' but have no idea on how to use it

Any suggestion everyone?

Try something like this:

CREATE OR REPLACE FUNCTION listofemployeebasedondepartment(id_dept int)
RETURNS SETOF employee AS
$BODY$
BEGIN

RETURN QUERY
SELECT
*
FROM
employee
WHERE
id_dept = _id_dept;

RETURN;
END;
$BODY$
LANGUAGE 'plpgsql';

Jan

Any suggestion everyone?

Sorry, i was to fast sending this email out ;-)

change the first parameter in the first line to '_id_depth'

CREATE OR REPLACE FUNCTION listofemployeebasedondepartment(_id_dept
int)
RETURNS SETOF employee AS
$BODY$
BEGIN

RETURN QUERY
SELECT
*
FROM
employee
WHERE
id_dept = _id_dept;

RETURN;
END;
$BODY$
LANGUAGE 'plpgsql';

Jan

|>
|> -----Original Message-----
|> From: pgsql-general-owner@postgresql.org [mailto:pgsql-general-owner@postgresql.org]On Behalf Of Hendra
|> Sent: 8 juillet 2008 02:59
|> To: pgsql-general@postgresql.org
|> Subject: [GENERAL] Hi there, new here and have question
|>
|> Hi Everyone.
|> I'm just subscribe to the mailing list
|> I'm new to Postgresql and
|> I have a question
|>
|> I intend to make a function that returns more than a row
|> I tried something like below
|>
|> create function listofemployeebasedondepartment(id_dept int) $$
|> declare
|> resultset ??;
|> begin
|> select * into resultset from employee where id_dept = id_dept;
|> return resultset;
|> end
|> $$ language 'plpgsql';
|>
|> I believe you get what I want
|> But I just couldn't finish the code since I miss something
|> I manage to find 'setof' but have no idea on how to use it
|>
|> Any suggestion everyone?
|>
|> Thank you,
|> Regards,
|> Hendra

I believe you are looking for this:
http://www.postgresql.org/docs/8.3/interactive/xfunc-sql.html#AEN40331

Good day,

Charles Simard

CREATE OR REPLACE FUNCTION listofemployeebasedondepartment(_id_dept
int)
RETURNS SETOF record AS
$BODY$
DECLARE
empdata record;
BEGIN

RETURN QUERY
SELECT
e.*, d.department_name
FROM
employee e, dept d
WHERE
e.id_dept = d.id AND
e.id_dept = _id_dept;

RETURN;
END;
$BODY$
LANGUAGE 'plpgsql';

I can call it by
SELECT listofemployeebasedondepartment(dept_id)
and it gives me return value a set of record,
but when I want to get just one field of those record,
for example
SELECT name FROM listofemployeebasedondepartment(dept_id)
psql gives me error that I don't have column-list or something like
that
How to achieve such result?

hi hendry,

simple example:

CREATE OR REPLACE FUNCTION test1(_id int)
RETURNS SETOF record AS
$BODY$
DECLARE rec record;
BEGIN
FOR rec IN
SELECT
a.foo, b.bar
FROM
a, b
WHERE
a.id = _id
AND a.id = b.id
LOOP
RETURN NEXT rec;
END LOOP;

RETURN;
END;
$BODY$
LANGUAGE 'plpgsql'

you have to specify the columns when you call your function something
like this:

select * from test1(1) as (foo text, bar text);

Jan