题解 | #平均播放进度大于60%的视频类别#
平均播放进度大于60%的视频类别
https://www.nowcoder.com/practice/c60242566ad94bc29959de0cdc6d95ef
select tag, avg_play_progress from ( select tag, concat(round(avg( case when process >= 1 then 1 else process end )*100,2), '%') avg_play_progress from ( select t2.tag, (TIMESTAMPDIFF(second,t1.start_time,t1.end_time)/t2.duration) process from tb_user_video_log t1 , tb_video_info t2 where t1.video_id = t2.video_id ) xxx group by tag ) xxxx where cast((left(avg_play_progress,5)) as decimal(5,2)) > 60 order by avg_play_progress desc