Обсуждение: how to write cursors
hi every one
i have created this simple function which returns a column of table , i have used simple SELECT statement , i simply want to know how can i achieve the same task with the help of cursor
CREATE OR REPLACE FUNCTION foo(id int)
returns table(cust_id int) as
$BODY$
BEGIN
return query Select userid from customer where proname ='shampoo';
END;
$BODY$
LANGUAGE plpgsql;
how can i write a cursor which should return all the custid who had proname shampoo . i shall be very thankful to you
Hello use a refcursors http://www.postgresql.org/docs/9.1/static/plpgsql-cursors.html Regards Pavel Stehule 2012/4/4 La Chi <the_man.inmee@yahoo.com>: > hi every one > > i have created this simple function which returns a column of table , i have > used simple SELECT statement , i simply want to know how can i achieve the > same task with the help of cursor > > CREATE OR REPLACE FUNCTION foo(id int) > returns table(cust_id int) as > $BODY$ > > BEGIN > > return query Select userid from customer where proname ='shampoo'; > END; > $BODY$ > LANGUAGE plpgsql; > > how can i write a cursor which should return all the custid who had proname > shampoo . i shall be very thankful to you >