CREATE TABLE flight (flno NUMBER, origin VARCHAR2, destination VARCHAR2, distance NUMBER, departure_date DATE, arrival_date DATE, price NUMBER, aid NUMBER)
CREATE TABLE employee (eid NUMBER, name VARCHAR2, salary NUMBER)
CREATE TABLE aircraft (aid NUMBER, name VARCHAR2, distance NUMBER)
CREATE TABLE certificate (eid NUMBER, aid NUMBER)

Show all origins and the number of flights from each origin by a bar chart, show by the x axis from low to high.
SELECT origin, COUNT(*) FROM flight GROUP BY origin ORDER BY origin
SELECT "origin", COUNT(*) FROM "flight" GROUP BY "origin" ORDER BY "origin"