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 tg.video_id, round( avg(case when timestampdiff(second,start_time,end_time)>=duration then 1 else 0 end),3) as avg_comp_play_rate from tb_user_video_log tg inner join tb_video_info tf on tg.video_id=tf.video_id where year(start_time)=2021 group by tg.video_id order by avg_comp_play_rate desc
