题解 | SQL必知必会 T100
确定最佳顾客的另一种方式(二)
https://www.nowcoder.com/practice/b5766f970ae64ac7944f37f5b47107aa
select c.cust_name, sum(oi.item_price*oi.quantity) total_price from Orders o inner join Customers c using(cust_id) inner join OrderItems oi using(order_num) group by c.cust_name having total_price >=1000 order by total_price
1.groupby与having搭配
2.join与using搭配