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(play_progress*100/duration),2),'%') as avg_play_progress
from (
select tag,duration,
if(timestampdiff(second,start_time,end_time)>duration,duration,timestampdiff(second,start_time,end_time)) as play_progress
from tb_user_video_log u
left join tb_video_info v
on u.video_id=v.video_id) as uv
group by tag
having avg(play_progress*100/duration)>60
order by avg_play_progress desc