题解 | 短视频直播间晚上11-12点之间各直播间的在线人数
短视频直播间晚上11-12点之间各直播间的在线人数
https://www.nowcoder.com/practice/38f5febc9dac4e9e84ed5891a3e4ca05
select a.room_id,max(room_name),count(distinct user_id) as user_count from user_view_tb a left join room_info_tb b on a.room_id = b.room_id where out_time>='23:00:00' group by room_id order by user_count desc
投递腾讯云智研发等公司7个岗位