SELECT COUNT(*), t1.network_name, t1.services FROM station AS t1 JOIN route AS t2 ON t1.id = t2.station_id GROUP BY t2.station_id
Temukan jumlah kereta untuk setiap stasiun, serta nama dan layanan jaringan stasiun.
CREATE TABLE route (station_id VARCHAR); CREATE TABLE station (network_name VARCHAR, services VARCHAR, id VARCHAR)