https://solvesql.com/problems/artists-without-artworks/
SELECT A.artist_id, A.name
FROM artists A LEFT JOIN artworks_artists B
ON A.artist_id = B.artist_id
WHERE 1=1
AND A.death_year IS NOT NULL
AND B.artist_id IS NULL
AND B.artist_id IS NULL
이 부분을
AND A.artist_id IS NULL
계속 이렇게 했었어서 데이터 아무것도 안나오고 있었음''';;;;