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
http://www.nowcoder.com/questionTerminal/ce313253a81c4947b20e801cd4da7894
select o.cust_id,sum(o1.item_price * o1.quantity) as total_ordered
from Orders o inner join OrderItems o1
on o.order_num = o1.order_num
group by o.cust_id
order by total_ordered desc
投递上海得物信息集团有限公司等公司9个岗位 >
