题解 | 各个视频的平均完播率
各个视频的平均完播率
https://www.nowcoder.com/practice/96263162f69a48df9d84a93c71045753
select
tb_user_video_log.video_id,
round(count(if(timestampdiff(SECOND,start_time, end_time)>=duration,1,NULL))/count(1),3)
as avg_comp_play_rate
from tb_user_video_log
inner join tb_video_info
on tb_video_info.video_id = tb_user_video_log.video_id
where year(start_time)=2021
group by video_id
order by avg_comp_play_rate desc
