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)

Stack bar chart of the number of type vs Nationality based on type, list by the bar in ascending.
SELECT Type, COUNT(Type) FROM ship GROUP BY Nationality, Type ORDER BY Type
SELECT "Type", COUNT("Type") FROM "ship" GROUP BY "Nationality", "Type" ORDER BY "Type"