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)
CREATE TABLE operate_company (id NUMBER, name CLOB, type CLOB, principal_activities CLOB, incorporated_in CLOB, group_equity_shareholding NUMBER)

What is the most common company type, and how many are there?
SELECT type, COUNT(*) FROM operate_company GROUP BY type ORDER BY COUNT(*) DESC LIMIT 1
SELECT "type", COUNT(*) FROM "operate_company" GROUP BY "type" ORDER BY COUNT(*) DESC FETCH FIRST 1 ROWS ONLY