题解 | #网易云音乐推荐(网易校招笔试真题)#
网易云音乐推荐(网易校招笔试真题)
https://www.nowcoder.com/practice/048ed413ac0e4cf4a774b906fc87e0e7
select music_name from music
where id in
(select music_id
from music_likes
where user_id in (
select follower_id
from follow
where user_id=1
)
and music_id not in (
select music_id
from music_likes
where user_id=1
))
