题解 | #各个视频的平均完播率#
各个视频的平均完播率
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select a.video_id,
round(sum(if(end_time-start_time>=duration,1,0))/count(start_time),3) as avg_comp_play_rate
from tb_user_video_log a
left join tb_video_info b
on a.video_id=b.video_id
where year(start_time)=2021
group by a.video_id
order by avg_comp_play_rate desc
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