题目链接:https://leetcode-cn.com/problems/classes-more-than-5-students/ 题目 有一个 courses 表 ,有: student (学生) 和 class (课程). 请列出所有超过或等于5名学生的课. 例如,表: +---------+------------+ | student | class | +---------+------------+ | A | Math | | B | English | | C | Math…
题:请列出所有超过或等于5名学生的课. 有一个courses 表 ,有: student (学生) 和 class (课程). 例如,表: +---------+------------+ | student | class | +---------+------------+ | A | Math | | B | English | | C | Math | | D | Biology | | E | Math | | F | Computer | | G | Math | | H | Mat…
题目: 有一个courses 表 ,有: student (学生) 和 class (课程). 请列出所有超过或等于5名学生的课. 例如,表: +---------+------------+ | student | class | +---------+------------+ | A | Math | | B | English | | C | Math | | D | Biology | | E | Math | | F | Computer | | G | Math | | H | M…
活动表 Activity: +--------------+---------+| Column Name | Type |+--------------+---------+| player_id | int || device_id | int || event_date | date || games_played | int |+--------------+---------+表的主键是 (player_id, event_date…