What are the names of reviewers who had rated 3 star and 4 star?
CREATE TABLE Reviewer (name VARCHAR, rID VARCHAR); CREATE TABLE Rating (rID VARCHAR, stars VARCHAR)
[SQL] SELECT T2.name FROM Rating AS T1 JOIN Reviewer AS T2 ON T1.rID = T2.rID WHERE T1.stars = 3 INTERSECT SELECT T2.name FROM Rating AS T1 JOIN Reviewer AS T2 ON T1.rID = T2.rID WHERE T1.stars = 4 [/SQL]