CREATE TABLE operate_company (id NUMBER, name CLOB, type CLOB, principal_activities CLOB, incorporated_in CLOB, group_equity_shareholding NUMBER)
CREATE TABLE flight (id NUMBER, vehicle_flight_number CLOB, date CLOB, pilot CLOB, velocity NUMBER, altitude NUMBER, airport_id NUMBER, company_id NUMBER)
CREATE TABLE airport (id NUMBER, city CLOB, country CLOB, iata CLOB, icao CLOB, name CLOB)

how many airports are there in each country?
SELECT COUNT(*), country FROM airport GROUP BY country
SELECT COUNT(*), "country" FROM "airport" GROUP BY "country"