CREATE TABLE exhibition (artist_id VARCHAR, year VARCHAR)
CREATE TABLE artist (name VARCHAR)

Show all artist names who didn't have an exhibition in 2004.
SELECT name FROM artist EXCEPT SELECT T2.name FROM exhibition AS T1 JOIN artist AS T2 ON T1.artist_id = T2.artist_id WHERE T1.year = 2004
SELECT "name" FROM "artist" EXCEPT SELECT "T2"."name" FROM "exhibition" AS "T1" JOIN "artist" AS "T2" ON "T1"."artist_id" = "T2"."artist_id" WHERE "T1"."year" = 2004