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

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01-19 12:48
门头沟学院 C++
只想搞钱的鸽子很喜欢...:混账是很多的,还有那些在自己风华正茂的年纪说风凉话讥讽那些下岗前员工的。这些人都是现在职场环境这么烂的帮凶
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