Find the number of routes and airport name for each source airport, order the results by decreasing number of routes.
CREATE TABLE airports (name VARCHAR, apid VARCHAR); CREATE TABLE routes (src_apid VARCHAR)
[SQL] 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 [/SQL]