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?tpId=298&tqId=2374706&sourceUrl=%2Fexam%2Foj%3Fpage%3D1%26tab%3DSQL%25E7%25AF%2587%26topicId%3D298
SELECT c.cust_name, o.order_num, sum(quantity*item_price) OrderTotal FROM Customers c JOIN Orders o ON c.cust_id=o.cust_id JOIN OrderItems oi ON o.order_num=oi.order_num GROUP BY order_num, cust_name ORDER BY cust_name, order_num
