题解 | #返回每个顾客不同订单的总金额#
返回每个顾客不同订单的总金额
https://www.nowcoder.com/practice/ce313253a81c4947b20e801cd4da7894
select cust_id ,sum(item_price*quantity)total_ordered from OrderItems,Orders where OrderItems.order_num=Orders.order_num group by cust_id having sum(item_price*quantity) order by total_ordered desc
