It would also be interesting to order flights by giving them a sequence number based on time, by carrier.
For instance, assuming
flight_id increments with each additional flight, we could use the following query to view flights by carrier, flight id, and sequence number:
SELECT carrier, id, (SELECT COUNT(*) FROM flights f WHERE f.id < flights.id AND f.carrier=flights.carrier) + 1 AS flight_sequence_number FROM flights;
Using the same pattern, write a query to view flights by origin, flight id, and sequence number. Alias the sequence number column as