Re: how to write cursors

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(dot)inmee(at)yahoo(dot)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
>