对每项物品,找出最贵价格的物品的经销商
对每项物品,找出最贵价格的物品的经销商
SELECT name, dealer, price FROM shop s1 WHERE price=(SELECT MAX(s2.price) FROM shop s2 WHERE s1.name = s2.name)
无语言基础,自学python所做的各种笔记,欢迎大牛指点.
对每项物品,找出最贵价格的物品的经销商
SELECT name, dealer, price FROM shop s1 WHERE price=(SELECT MAX(s2.price) FROM shop s2 WHERE s1.name = s2.name)