declare
        v_creditcard_id         ec_creditcards.creditcard_id%TYPE;
begin
        IF new.order_id is not null THEN
                select into v_creditcard_id creditcard_id 
		    from ec_orders where order_id=new.order_id;
                IF new.creditcard_id is null THEN
                        new.creditcard_id := v_creditcard_id;
                END IF;
        END IF;
	return new;
end;