CREATE TABLE airports (apid DECIMAL, name TEXT, city TEXT, country TEXT, x DECIMAL, y DECIMAL, elevation DECIMAL, iata TEXT, icao TEXT)
CREATE TABLE airlines (alid DECIMAL, name TEXT, iata TEXT, icao TEXT, callsign TEXT, country TEXT, active TEXT)
CREATE TABLE routes (rid DECIMAL, dst_apid DECIMAL, dst_ap TEXT, src_apid DECIMAL, src_ap TEXT, alid DECIMAL, airline TEXT, codeshare TEXT)

Find the number of routes and airport name for each source airport, order the results by decreasing number of routes.
SELECT COUNT(*), T1.name FROM airports AS T1 JOIN routes AS T2 ON T1.apid = T2.src_apid GROUP BY T1.name ORDER BY COUNT(*) DESC
SELECT COUNT(*), "T1"."name" FROM "airports" AS "T1" JOIN "routes" AS "T2" ON "T1"."apid" = "T2"."src_apid" GROUP BY "T1"."name" ORDER BY COUNT(*) DESC NULLS LAST