题解 | #返回购买价格为 10 美元或以上产品的顾客列表#
返回购买价格为 10 美元或以上产品的顾客列表
https://www.nowcoder.com/practice/827eb2a210c64ccdb8ec28fe4c50c246
SELECT DISTINCT cust_id FROM ( SELECT order_num FROM OrderItems WHERE item_price >= 10 ) o JOIN Orders O ON O.order_num=o.order_num 也可以用内连接来做