mysql 查询不一样用户 最新的一条日志记录/mysql查询 不一样用户 最近一条记录

select a.id,a.start_time,a.online_time,a.end_time,a.user_id from ( SELECT id,start_time,online_time,end_time,user_id FROM logonlinetb where businessId = '05051357441470000' and group_id = '11071459147

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