CREATE TABLE employee (eid DECIMAL, name VARCHAR, salary DECIMAL)
CREATE TABLE flight (flno DECIMAL, origin VARCHAR, destination VARCHAR, distance DECIMAL, departure_date DATE, arrival_date DATE, price DECIMAL, aid DECIMAL)
CREATE TABLE certificate (eid DECIMAL, aid DECIMAL)
CREATE TABLE aircraft (aid DECIMAL, name VARCHAR, distance DECIMAL)

Show all origins and the number of flights from each origin. Show bar chart.
SELECT origin, COUNT(*) FROM flight GROUP BY origin
SELECT "origin", COUNT(*) FROM "flight" GROUP BY "origin"