CREATE TABLE exhibition_record (exhibition_id NUMBER, date CLOB, attendance NUMBER)
CREATE TABLE artist (artist_id NUMBER, name CLOB, country CLOB, year_join NUMBER, age NUMBER)
CREATE TABLE exhibition (exhibition_id NUMBER, year NUMBER, theme CLOB, artist_id NUMBER, ticket_price NUMBER)

What are the names of artist whose exhibitions draw over 200 attendees on average?
SELECT T3.name FROM exhibition_record AS T1 JOIN exhibition AS T2 ON T1.exhibition_id = T2.exhibition_id JOIN artist AS T3 ON T3.artist_id = T2.artist_id GROUP BY T3.artist_id HAVING AVG(T1.attendance) > 200
SELECT "T3"."name" FROM "exhibition_record" "T1" JOIN "exhibition" "T2" ON "T1"."exhibition_id" = "T2"."exhibition_id" JOIN "artist" "T3" ON "T2"."artist_id" = "T3"."artist_id" GROUP BY "T3"."artist_id" HAVING AVG("T1"."attendance") > 200