CREATE TABLE Reviewer (rID INT, name TEXT)
CREATE TABLE Rating (rID INT, mID INT, stars INT, ratingDate DATE)
CREATE TABLE Movie (mID INT, title TEXT, year INT, director TEXT)

What is the average number of stars that each reviewer awards for a movie Show bar chart, and rank in ascending by the y-axis.
SELECT name, AVG(T1.stars) FROM Rating AS T1 JOIN Reviewer AS T2 ON T1.rID = T2.rID GROUP BY T2.name ORDER BY AVG(T1.stars)
SELECT "name", AVG("T1"."stars") FROM "Rating" AS "T1" JOIN "Reviewer" AS "T2" ON "T1"."rID" = "T2"."rID" GROUP BY "T2"."name" ORDER BY AVG("T1"."stars") NULLS FIRST