Find the names of reviewers who had given higher than 3 star ratings.
SELECT T2.name FROM Rating AS T1 JOIN Reviewer AS T2 ON T1.rID  =  T2.rID WHERE T1.stars  >  3
reviewers who had given higher than 3 star ratings refers to filtering condition WHERE stars > 3; names of reviewers refers to selecting the name column from the Reviewer table; joining tables is required to connect reviewer names to their ratings.