题解 | #SQL100#
确定最佳顾客的另一种方式（二）
https://www.nowcoder.com/practice/b5766f970ae64ac7944f37f5b47107aa
select c.cust_name, SUM(o2.item_price*o2.quantity) as total_price from Orders o1 inner join OrderItems o2 on o1.order_num = o2.order_num inner join Customers c on o1.cust_id = c.cust_id group by c.cust_name having total_price >= 1000 order by total_price asc;
三表联合查询+group by(注意除了group by 的字段和聚合函数，其他的字段不能出现在select语句中)
