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

Show me how many destination by destination in a histogram, and order y-axis in desc order.
SELECT destination, COUNT(destination) FROM flight GROUP BY destination ORDER BY COUNT(destination) DESC
SELECT "destination", COUNT("destination") FROM "flight" GROUP BY "destination" ORDER BY COUNT("destination") DESC