使用窗口函数sum()over()来解答
- 虽然但是,我觉得是有点歧义的,他问题应该问成:总积分最高的 而不是 增加积分最高的
select u.name, g.grade from (select user_id, sum(grade_num)over(partition by user_id) grade from grade_info order by grade desc limit 1)g join user as u on g.user_id = u.id
使用窗口函数sum()over()来解答
select u.name, g.grade from (select user_id, sum(grade_num)over(partition by user_id) grade from grade_info order by grade desc limit 1)g join user as u on g.user_id = u.id