### Database Schema:
CREATE TABLE status (
	station_id	INTEGER	NULL,
	bikes_available	INTEGER	NULL,
	docks_available	INTEGER	NULL,
	time	TEXT	NULL
);

CREATE TABLE station (
	id	INTEGER	NOT NULL	PRIMARY KEY,
	name	TEXT	NULL,
	lat	REAL	NULL,
	long	REAL	NULL,
	dock_count	INTEGER	NULL,
	city	TEXT	NULL,
	installation_date	TEXT	NULL
);

CREATE TABLE weather (
	date	TEXT	NULL,
	max_temperature_f	INTEGER	NULL,
	mean_temperature_f	INTEGER	NULL,
	min_temperature_f	INTEGER	NULL,
	max_dew_point_f	INTEGER	NULL,
	mean_dew_point_f	INTEGER	NULL,
	min_dew_point_f	INTEGER	NULL,
	max_humidity	INTEGER	NULL,
	mean_humidity	INTEGER	NULL,
	min_humidity	INTEGER	NULL,
	max_sea_level_pressure_inches	REAL	NULL,
	mean_sea_level_pressure_inches	REAL	NULL,
	min_sea_level_pressure_inches	REAL	NULL,
	max_visibility_miles	INTEGER	NULL,
	mean_visibility_miles	INTEGER	NULL,
	min_visibility_miles	INTEGER	NULL,
	max_wind_Speed_mph	INTEGER	NULL,
	mean_wind_speed_mph	INTEGER	NULL,
	max_gust_speed_mph	INTEGER	NULL,
	precipitation_inches	TEXT	NULL,
	cloud_cover	INTEGER	NULL,
	events	TEXT	NULL,
	wind_dir_degrees	INTEGER	NULL,
	zip_code	TEXT	NULL
);

CREATE TABLE trip (
	id	INTEGER	NOT NULL	PRIMARY KEY,
	duration	INTEGER	NULL,
	start_date	TEXT	NULL,
	start_station_name	TEXT	NULL,
	start_station_id	INTEGER	NULL,
	end_date	TEXT	NULL,
	end_station_name	TEXT	NULL,
	end_station_id	INTEGER	NULL,
	bike_id	INTEGER	NULL,
	subscription_type	TEXT	NULL,
	zip_code	INTEGER	NULL
);

### User's Query:
Which bicycle is the least used bike. Check if the start and end station are from the same city and calculate the total duration travelled by the bicycle in hours for a trip made within the same city.

### Extra Knowledge:
least used bike refers to bike_id with MIN(COUNT(main_trip.id)); start station refers to start_station_name; end station refers to end_station_name; total duration in hour = DIVIDE(duration, 3600) AS hour;
SELECT T2.bike_id, T2.start_station_name, T2.end_station_name, T1.city , CAST(T2.duration AS REAL) / 3600 FROM station AS T1 INNER JOIN trip AS T2 ON T1.name = T2.start_station_name GROUP BY T2.bike_id ORDER BY COUNT(T2.id) DESC LIMIT 1