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
http://www.nowcoder.com/practice/4dda66e385c443d8a11570a70807d250
SELECT cust_name, order_num, SUM(quantity * item_price) AS OrderTotal
FROM Customers
INNER JOIN Orders USING(cust_id)
INNER JOIN OrderItems USING(order_num)
GROUP BY cust_name, order_num
ORDER BY cust_name, order_num;
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