CREATE TABLE mission (Mission_ID NUMBER, Ship_ID NUMBER, Code CLOB, Launched_Year NUMBER, Location CLOB, Speed_knots NUMBER, Fate CLOB)
CREATE TABLE ship (Ship_ID NUMBER, Name CLOB, Type CLOB, Nationality CLOB, Tonnage NUMBER)

For each type, how many ships are there Plot them as bar chart, list from high to low by the total number please.
SELECT Type, COUNT(*) FROM ship GROUP BY Type ORDER BY COUNT(*) DESC
SELECT "Type", COUNT(*) FROM "ship" GROUP BY "Type" ORDER BY COUNT(*) DESC