Re: Hi there, new here and have question

> 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