CREATE TABLE playlists (id VARCHAR2, name VARCHAR2)
CREATE TABLE tracks (name VARCHAR2, id VARCHAR2)
CREATE TABLE playlist_tracks (track_id VARCHAR2, playlist_id VARCHAR2)

Find the name of tracks which are in Movies playlist but not in music playlist.
SELECT T1.name FROM tracks AS T1 JOIN playlist_tracks AS T2 ON T1.id = T2.track_id JOIN playlists AS T3 ON T2.playlist_id = T3.id WHERE T3.name = 'Movies' EXCEPT SELECT T1.name FROM tracks AS T1 JOIN playlist_tracks AS T2 ON T1.id = T2.track_id JOIN playlists AS T3 ON T2.playlist_id = T3.id WHERE T3.name = 'Music'
SELECT "T1"."name" FROM "tracks" "T1" JOIN "playlist_tracks" "T2" ON "T1"."id" = "T2"."track_id" JOIN "playlists" "T3" ON "T2"."playlist_id" = "T3"."id" AND "T3"."name" = 'Movies' EXCEPT SELECT "T1"."name" FROM "tracks" "T1" JOIN "playlist_tracks" "T2" ON "T1"."id" = "T2"."track_id" JOIN "playlists" "T3" ON "T2"."playlist_id" = "T3"."id" AND "T3"."name" = 'Music'