题解 | #返回顾客名称和相关订单号以及每个订单的总价#
返回顾客名称和相关订单号以及每个订单的总价
http://www.nowcoder.com/practice/4dda66e385c443d8a11570a70807d250
select cust_name,t3.order_num ,sum(quantity*item_price) as OrderTotal from Customers t1 inner join Orders t2 on t1.cust_id=t2.cust_id inner join OrderItems t3 on t2.order_num=t3.order_num group by cust_name,t3.order_num order by cust_name,t3.order_num
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