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, order_num, (sum(quantity * OI.item_price)) OrderTotal
from (Customers
inner join Orders USING (cust_id) inner join OrderItems OI USING (order_num))
group by cust_name, order_num
order by cust_name, order_num;
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