mysql
select player_id,min(event_date) as first_login
from Activity
group by player_id
select player_id,event_date as first_login
from Activity
group by player_id
having event_date = min(event_date)
为什么下面这种方式是错的,
from Activity
group by player_id
select player_id,event_date as first_login
from Activity
group by player_id
having event_date = min(event_date)
为什么下面这种方式是错的,
全部评论
相关推荐
06-24 16:13
郑州大学 机械工程师 点赞 评论 收藏
分享
05-23 10:52
湖南信息职业技术学院 Web前端 点赞 评论 收藏
分享
点赞 评论 收藏
分享