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

Show all destinations and the number of flights to each destination by a bar chart, order in ascending by the the total number .
SELECT destination, COUNT(*) FROM flight GROUP BY destination ORDER BY COUNT(*)
SELECT "destination", COUNT(*) FROM "flight" GROUP BY "destination" ORDER BY COUNT(*)