human
Schema:
routes (rid, dst_apid, dst_ap, src_apid, src_ap, alid, airline, codeshare)
airports (apid, name, city, country, x, y, elevation, iata, icao)
airlines (alid, name, iata, icao, callsign, country, active)
Please answer with SQL.
assistant
Sure, I understand.
human
Hello! Can you first give me a list of all of the countries?
assistant
SELECT country FROM airlines;
human
Great! Which of these countries has the most airlines with an Active status of 'Y'?
assistant
SELECT country FROM airlines WHERE active = "Y" GROUP BY country ORDER BY COUNT( * ) DESC LIMIT 1 ;