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 , t1.order_num , sum(quantity*item_price) OrderTotal from Orders t1 left join Customers c on t1.cust_id = c.cust_id left join OrderItems t2 on t1.order_num = t2.order_num group by 1,2 order by 1,2
，再说不用上高数吗？
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