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

Visualize a bar chart for what are the different classes of races, and how many races correspond to each?, list by the y-axis from high to low.
SELECT Class, COUNT(*) FROM race GROUP BY Class ORDER BY COUNT(*) DESC
SELECT "Class", COUNT(*) FROM "race" GROUP BY "Class" ORDER BY COUNT(*) DESC