( SELECT max( t.create_date ) AS create_date FROM vod_play_history t WHERE t.delete_date is null and t.member_id = #{memberId} AND t.class_id = #{classId} ) t
( SELECT max( t.create_date ) AS create_date FROM vod_play_history t WHERE t.delete_date is null and t.member_id = #{memberId} AND t.class_id = #{classId} ) t
LEFT JOIN vod_play_history t2 ON t.create_date = t2.create_date
LEFT JOIN vod_play_history t2 ON t.create_date = t2.create_date