题解 | #牛客每个人最近的登录日期(六)#
牛客每个人最近的登录日期(六)
https://www.nowcoder.com/practice/572a027e52804c058e1f8b0c5e8a65b4?tpId=82&tags=&title=&difficulty=0&judgeStatus=0&rp=1&sourceUrl=%2Fexam%2Foj%3Fpage%3D2%26tab%3DSQL%25E7%25AF%2587%26topicId%3D82
聚合窗口函数
select name u_n,date,sum(number)over(partition by user_id order by date)ps_num
from user join passing_number pn on user.id=pn.user_id
order by date,u_n
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主要是为自己做个笔记