Context: CREATE TABLE Reviewer (rID VARCHAR, name VARCHAR); CREATE TABLE Rating (mID VARCHAR, stars INTEGER); CREATE TABLE Rating (mID VARCHAR, rID VARCHAR)
Question: Find the average rating star for each movie that are not reviewed by Brittany Harris.
Answer: SELECT mID, AVG(stars) FROM Rating WHERE NOT mID IN (SELECT T1.mID FROM Rating AS T1 JOIN Reviewer AS T2 ON T1.rID = T2.rID WHERE T2.name = "Brittany Harris") GROUP BY mID