SELECT p.prod_name prod_name, oi.order_num order_num FROM Products p LEFT JOIN OrderItems oi ON p.prod_id = oi.prod_id ORDER BY p.prod_name;
SELECT p.prod_name prod_name, oi.order_num order_num FROM Products p LEFT JOIN OrderItems oi ON p.prod_id = oi.prod_id ORDER BY p.prod_name;