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, concat(round(avg(if(a>1,1,a))*100,2),'%') b from( select tag, timestampdiff(second,start_time,end_time)/duration a from tb_user_video_log left join tb_video_info using(video_id)) as tb1 group by tag having avg(if(a>1,1,a))>0.6 order by b desc