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(avg_play_progress, "%") as avg_play_progress FROM ( SELECT tag, ROUND(AVG( IF(TIMESTAMPDIFF(SECOND, start_time, end_time) > duration, 1, TIMESTAMPDIFF(SECOND, start_time, end_time) / duration) ) * 100, 2) as avg_play_progress FROM tb_user_video_log JOIN tb_video_info USING(video_id) GROUP BY tag HAVING avg_play_progress > 60 ORDER BY avg_play_progress DESC ) as t;