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
https://www.nowcoder.com/practice/4dda66e385c443d8a11570a70807d250
select cust_name, b.order_num, sum(quantity*item_price) as OrderTotal from Customers a join Orders b on a.cust_id=b.cust_id join OrderItems c on b.order_num=c.order_num group by cust_name, b.order_num order by cust_name, b.order_num
