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

Find the number of trains for each station, as well as the station network name. Show the result with a bar graph.
SELECT network_name, COUNT(*) FROM station AS t1 JOIN route AS t2 ON t1.id = t2.station_id GROUP BY t2.station_id
SELECT "network_name", COUNT(*) FROM "station" "t1" JOIN "route" "t2" ON "t1"."id" = "t2"."station_id" GROUP BY "t2"."station_id"