CREATE TABLE rating (rid NUMBER, mid NUMBER, stars NUMBER, ratingdate TIME)
CREATE TABLE reviewer (rid NUMBER, name CLOB)
CREATE TABLE movie (mid NUMBER, title CLOB, year NUMBER, director CLOB)

What are the movie titles with the highest average rating and what are those ratings?
SELECT T2.title, AVG(T1.stars) FROM rating AS T1 JOIN movie AS T2 ON T1.mid = T2.mid GROUP BY T1.mid ORDER BY AVG(T1.stars) DESC LIMIT 1
SELECT "T2"."title", AVG("T1"."stars") FROM "rating" "T1" JOIN "movie" "T2" ON "T1"."mid" = "T2"."mid" GROUP BY "T1"."mid" ORDER BY AVG("T1"."stars") DESC FETCH FIRST 1 ROWS ONLY