CREATE TABLE race (Race_ID INT, Name TEXT, Class TEXT, Date TEXT, Track_ID TEXT)
CREATE TABLE track (Track_ID INT, Name TEXT, Location TEXT, Seating FLOAT, Year_Opened FLOAT)

Give me a bar chart for the total number of each class, display in asc by the Y-axis.
SELECT Class, COUNT(*) FROM race GROUP BY Class ORDER BY COUNT(*)
SELECT "Class", COUNT(*) FROM "race" GROUP BY "Class" ORDER BY COUNT(*) NULLS FIRST