Re: PL/pgSQL loops?

On Wed, 28 Nov 2001 14:49:42 +0000 (UTC), pgsql(at)halfahead(dot)dk ("Johnny
Jørgensen") wrote:

> << order_loop >>
> FOR cur_order IN SELECT * FROM ordre WHERE person_id =3D p_id AND status =
>=3D 1 AND id !=3D o_id
> LOOP
> RAISE NOTICE ''outer: %'',cur_order.id;
>
> << item_loop >>
> FOR cur_item IN SELECT * FROM item WHERE order_id =3D cur_order_id
> LOOP
> RAISE NOTICE ''inner: %'',cur_item.id;
>
> UPDATE item SET ordre_id =3D o_id WHERE id =3D cur_item.id;
>
> END LOOP;
>
> UPDATE ordre SET status =3D 0 WHERE id =3D cur_order.id;
>
> END LOOP;

Don't know much about LOOPs. But wouldn't this do want you want?

UPDATE item
SET ordre_id = o_id
FROM ordre
WHERE ordre.id = item.ordre_id
AND ordre.person_id = p_id AND ordre.status = 1 AND ordre.id != o_id

UPDATE ordre
SET status = 0
WHERE person_id = p_id AND status = 1 AND id != o_id

Kind regards,
Carl van Tast