CREATE TABLE captain (Captain_ID NUMBER, Name CLOB, Ship_ID NUMBER, age CLOB, Class CLOB, Rank CLOB)
CREATE TABLE Ship (Ship_ID NUMBER, Name CLOB, Type CLOB, Built_Year FLOAT, Class CLOB, Flag CLOB)

Return a bar chart on what are the different ship flags, and how many ships have each?
SELECT Flag, COUNT(*) FROM Ship GROUP BY Flag
SELECT "Flag", COUNT(*) FROM "Ship" GROUP BY "Flag"