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 Customers.cust_name,Orders.order_num,tb.OrderTotal
from Customers
inner join Orders
on Customers.cust_id=Orders.cust_id inner join
(select order_num,sum(quantity*item_price) OrderTotal from OrderItems group by order_num) tb
on Orders.order_num=tb.order_num
from Customers
inner join Orders
on Customers.cust_id=Orders.cust_id inner join
(select order_num,sum(quantity*item_price) OrderTotal from OrderItems group by order_num) tb
on Orders.order_num=tb.order_num
order by cust_name,order_num;
