CREATE TABLE route (train_id INT, station_id INT)
CREATE TABLE station (id INT, network_name TEXT, services TEXT, local_authority TEXT)
CREATE TABLE weekly_weather (station_id INT, day_of_week TEXT, high_temperature INT, low_temperature INT, precipitation FLOAT, wind_speed_mph INT)
CREATE TABLE train (id INT, train_number INT, name TEXT, origin TEXT, destination TEXT, time TEXT, interval TEXT)

Find the number of trains for each station, as well as the station network name Show the result with a bar graph, and order from low to high by the y-axis.
SELECT network_name, COUNT(*) FROM station AS t1 JOIN route AS t2 ON t1.id = t2.station_id GROUP BY t2.station_id ORDER BY COUNT(*)
SELECT "network_name", COUNT(*) FROM "station" AS "t1" JOIN "route" AS "t2" ON "t1"."id" = "t2"."station_id" GROUP BY "t2"."station_id" ORDER BY COUNT(*) NULLS FIRST