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
with t as
(
select order_num,sum(quantity*item_price) 'OrderTotal'
from OrderItems
group by order_num
)
select c.cust_name,t.order_num,t.OrderTotal
from Orders o join Customers c using(cust_id)
join t using(order_num)
order by c.cust_name,t.order_num asc;
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