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
t3.cust_name as cust_name,
t1.order_num as order_num,
sum(quantity * item_price) as OrderTotal
from
OrderItems as t1
inner join Orders as t2 on t1.order_num = t2.order_num
inner join Customers as t3 on t2.cust_id = t3.cust_id
group by cust_name, order_num
order by t3.cust_name asc;
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