CREATE TABLE country (Country_id NUMBER, Country_name CLOB, Capital CLOB, Official_native_language CLOB)
CREATE TABLE team (Team_id NUMBER, Name CLOB)
CREATE TABLE match_season (Season FLOAT, Player CLOB, Position CLOB, Country NUMBER, Team NUMBER, Draft_Pick_Number NUMBER, Draft_Class CLOB, College CLOB)
CREATE TABLE player (Player_ID NUMBER, Player CLOB, Years_Played CLOB, Total_WL CLOB, Singles_WL CLOB, Doubles_WL CLOB, Team NUMBER)

Bar chart of the number of years played from each years played, and order x-axis in desc order.
SELECT Years_Played, COUNT(Years_Played) FROM player GROUP BY Years_Played ORDER BY Years_Played DESC
SELECT "Years_Played", COUNT("Years_Played") FROM "player" GROUP BY "Years_Played" ORDER BY "Years_Played" DESC