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Pipable Inc 11

CREATE TABLE station (Station_ID number, Name text, Annual_entry_exit number, Annual_interchanges number, Total_Passengers number, Location text, Main_Services text, Number_of_Platforms number); CREATE TABLE train (Train_ID number, Name text, Time text, Service text); CREATE TABLE train_station (Train_ID number, Station_ID number);

Show the name, location, and number of platforms for all stations.

SELECT name , LOCATION , number_of_platforms FROM station

medium

CREATE TABLE station (Station_ID number, Name text, Annual_entry_exit number, Annual_interchanges number, Total_Passengers number, Location text, Main_Services text, Number_of_Platforms number); CREATE TABLE train (Train_ID number, Name text, Time text, Service text); CREATE TABLE train_station (Train_ID number, Station_ID number);

What are all locations of train stations?

SELECT DISTINCT LOCATION FROM station

easy

CREATE TABLE station (Station_ID number, Name text, Annual_entry_exit number, Annual_interchanges number, Total_Passengers number, Location text, Main_Services text, Number_of_Platforms number); CREATE TABLE train (Train_ID number, Name text, Time text, Service text); CREATE TABLE train_station (Train_ID number, Station_ID number);

Show the names and total passengers for all train stations not in London.

SELECT name , total_passengers FROM station WHERE LOCATION != 'London'

medium

CREATE TABLE station (Station_ID number, Name text, Annual_entry_exit number, Annual_interchanges number, Total_Passengers number, Location text, Main_Services text, Number_of_Platforms number); CREATE TABLE train (Train_ID number, Name text, Time text, Service text); CREATE TABLE train_station (Train_ID number, Station_ID number);

Show the names and main services for train stations that have the top three total number of passengers.

SELECT name , main_services FROM station ORDER BY total_passengers DESC LIMIT 3

medium

CREATE TABLE station (Station_ID number, Name text, Annual_entry_exit number, Annual_interchanges number, Total_Passengers number, Location text, Main_Services text, Number_of_Platforms number); CREATE TABLE train (Train_ID number, Name text, Time text, Service text); CREATE TABLE train_station (Train_ID number, Station_ID number);

What is the average and maximum number of total passengers for train stations in London or Glasgow?

SELECT avg(total_passengers) , max(total_passengers) FROM station WHERE LOCATION = 'London' OR LOCATION = 'Glasgow'

hard

CREATE TABLE station (Station_ID number, Name text, Annual_entry_exit number, Annual_interchanges number, Total_Passengers number, Location text, Main_Services text, Number_of_Platforms number); CREATE TABLE train (Train_ID number, Name text, Time text, Service text); CREATE TABLE train_station (Train_ID number, Station_ID number);

Show all locations and the total number of platforms and passengers for all train stations in each location.

SELECT LOCATION , sum(number_of_platforms) , sum(total_passengers) FROM station GROUP BY LOCATION

medium

CREATE TABLE station (Station_ID number, Name text, Annual_entry_exit number, Annual_interchanges number, Total_Passengers number, Location text, Main_Services text, Number_of_Platforms number); CREATE TABLE train (Train_ID number, Name text, Time text, Service text); CREATE TABLE train_station (Train_ID number, Station_ID number);

Show all locations that have train stations with at least 15 platforms and train stations with more than 25 total passengers.

SELECT DISTINCT LOCATION FROM station WHERE number_of_platforms >= 15 AND total_passengers > 25

medium

CREATE TABLE station (Station_ID number, Name text, Annual_entry_exit number, Annual_interchanges number, Total_Passengers number, Location text, Main_Services text, Number_of_Platforms number); CREATE TABLE train (Train_ID number, Name text, Time text, Service text); CREATE TABLE train_station (Train_ID number, Station_ID number);

Show all locations which don't have a train station with at least 15 platforms.

SELECT LOCATION FROM station EXCEPT SELECT LOCATION FROM station WHERE number_of_platforms >= 15

hard

CREATE TABLE station (Station_ID number, Name text, Annual_entry_exit number, Annual_interchanges number, Total_Passengers number, Location text, Main_Services text, Number_of_Platforms number); CREATE TABLE train (Train_ID number, Name text, Time text, Service text); CREATE TABLE train_station (Train_ID number, Station_ID number);

Show the location with most number of train stations.

SELECT LOCATION FROM station GROUP BY LOCATION ORDER BY count(*) DESC LIMIT 1

hard

CREATE TABLE station (Station_ID number, Name text, Annual_entry_exit number, Annual_interchanges number, Total_Passengers number, Location text, Main_Services text, Number_of_Platforms number); CREATE TABLE train (Train_ID number, Name text, Time text, Service text); CREATE TABLE train_station (Train_ID number, Station_ID number);

Show the name, time, and service for all trains.

SELECT name , TIME , service FROM train

medium

CREATE TABLE station (Station_ID number, Name text, Annual_entry_exit number, Annual_interchanges number, Total_Passengers number, Location text, Main_Services text, Number_of_Platforms number); CREATE TABLE train (Train_ID number, Name text, Time text, Service text); CREATE TABLE train_station (Train_ID number, Station_ID number);

Show the number of trains

SELECT count(*) FROM train

easy

CREATE TABLE station (Station_ID number, Name text, Annual_entry_exit number, Annual_interchanges number, Total_Passengers number, Location text, Main_Services text, Number_of_Platforms number); CREATE TABLE train (Train_ID number, Name text, Time text, Service text); CREATE TABLE train_station (Train_ID number, Station_ID number);

Show the name and service for all trains in order by time.

SELECT name , service FROM train ORDER BY TIME

medium

CREATE TABLE station (Station_ID number, Name text, Annual_entry_exit number, Annual_interchanges number, Total_Passengers number, Location text, Main_Services text, Number_of_Platforms number); CREATE TABLE train (Train_ID number, Name text, Time text, Service text); CREATE TABLE train_station (Train_ID number, Station_ID number);

Show the station name and number of trains in each station.

SELECT T2.name , count(*) FROM train_station AS T1 JOIN station AS T2 ON T1.station_id = T2.station_id GROUP BY T1.station_id

medium

CREATE TABLE station (Station_ID number, Name text, Annual_entry_exit number, Annual_interchanges number, Total_Passengers number, Location text, Main_Services text, Number_of_Platforms number); CREATE TABLE train (Train_ID number, Name text, Time text, Service text); CREATE TABLE train_station (Train_ID number, Station_ID number);

show the train name and station name for each train.

SELECT T2.name , T3.name FROM train_station AS T1 JOIN station AS T2 ON T1.station_id = T2.station_id JOIN train AS T3 ON T3.train_id = T1.train_id

medium

CREATE TABLE station (Station_ID number, Name text, Annual_entry_exit number, Annual_interchanges number, Total_Passengers number, Location text, Main_Services text, Number_of_Platforms number); CREATE TABLE train (Train_ID number, Name text, Time text, Service text); CREATE TABLE train_station (Train_ID number, Station_ID number);

Show all train names and times in stations in London in descending order by train time.

SELECT T3.name , T3.time FROM train_station AS T1 JOIN station AS T2 ON T1.station_id = T2.station_id JOIN train AS T3 ON T3.train_id = T1.train_id WHERE T2.location = 'London' ORDER BY T3.time DESC

extra

CREATE TABLE station (Station_ID number, Name text, Annual_entry_exit number, Annual_interchanges number, Total_Passengers number, Location text, Main_Services text, Number_of_Platforms number); CREATE TABLE train (Train_ID number, Name text, Time text, Service text); CREATE TABLE train_station (Train_ID number, Station_ID number);

Show the station name with greatest number of trains.

SELECT T2.name FROM train_station AS T1 JOIN station AS T2 ON T1.station_id = T2.station_id GROUP BY T1.station_id ORDER BY count(*) DESC LIMIT 1

extra

CREATE TABLE station (Station_ID number, Name text, Annual_entry_exit number, Annual_interchanges number, Total_Passengers number, Location text, Main_Services text, Number_of_Platforms number); CREATE TABLE train (Train_ID number, Name text, Time text, Service text); CREATE TABLE train_station (Train_ID number, Station_ID number);

Show the station name with at least two trains.

SELECT T2.name FROM train_station AS T1 JOIN station AS T2 ON T1.station_id = T2.station_id GROUP BY T1.station_id HAVING count(*) >= 2

medium

CREATE TABLE station (Station_ID number, Name text, Annual_entry_exit number, Annual_interchanges number, Total_Passengers number, Location text, Main_Services text, Number_of_Platforms number); CREATE TABLE train (Train_ID number, Name text, Time text, Service text); CREATE TABLE train_station (Train_ID number, Station_ID number);

Show all locations with only 1 station.

SELECT LOCATION FROM station GROUP BY LOCATION HAVING count(*) = 1

easy

CREATE TABLE station (Station_ID number, Name text, Annual_entry_exit number, Annual_interchanges number, Total_Passengers number, Location text, Main_Services text, Number_of_Platforms number); CREATE TABLE train (Train_ID number, Name text, Time text, Service text); CREATE TABLE train_station (Train_ID number, Station_ID number);

Show station names without any trains.

SELECT name FROM station WHERE station_id NOT IN (SELECT station_id FROM train_station)

hard

CREATE TABLE station (Station_ID number, Name text, Annual_entry_exit number, Annual_interchanges number, Total_Passengers number, Location text, Main_Services text, Number_of_Platforms number); CREATE TABLE train (Train_ID number, Name text, Time text, Service text); CREATE TABLE train_station (Train_ID number, Station_ID number);

What are the names of the stations which serve both "Ananthapuri Express" and "Guruvayur Express" trains?

SELECT T2.name FROM train_station AS T1 JOIN station AS T2 ON T1.station_id = T2.station_id JOIN train AS T3 ON T3.train_id = T1.train_id WHERE T3.Name = "Ananthapuri Express" INTERSECT SELECT T2.name FROM train_station AS T1 JOIN station AS T2 ON T1.station_id = T2.station_id JOIN train AS T3 ON T3.train_id = T1.train_id WHERE T3.Name = "Guruvayur Express"

extra

CREATE TABLE station (Station_ID number, Name text, Annual_entry_exit number, Annual_interchanges number, Total_Passengers number, Location text, Main_Services text, Number_of_Platforms number); CREATE TABLE train (Train_ID number, Name text, Time text, Service text); CREATE TABLE train_station (Train_ID number, Station_ID number);

Find the names of the trains that do not pass any station located in London.

SELECT T2.name FROM train_station AS T1 JOIN train AS T2 ON T1.train_id = T2.train_id WHERE T1.station_id NOT IN (SELECT T4.station_id FROM train_station AS T3 JOIN station AS T4 ON T3.station_id = T4.station_id WHERE t4.location = "London")

extra

CREATE TABLE station (Station_ID number, Name text, Annual_entry_exit number, Annual_interchanges number, Total_Passengers number, Location text, Main_Services text, Number_of_Platforms number); CREATE TABLE train (Train_ID number, Name text, Time text, Service text); CREATE TABLE train_station (Train_ID number, Station_ID number);

List the names and locations of all stations ordered by their yearly entry exit and interchange amounts.

SELECT name , LOCATION FROM station ORDER BY Annual_entry_exit , Annual_interchanges

medium

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

List all vehicle id

SELECT vehicle_id FROM Vehicles;

easy

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

What are the ids of all vehicles?

SELECT vehicle_id FROM Vehicles;

easy

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

How many vehicle in total?

SELECT count(*) FROM Vehicles;

easy

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

How many vehicles exist?

SELECT count(*) FROM Vehicles;

easy

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

Show the detail of vehicle with id 1.

SELECT vehicle_details FROM Vehicles WHERE vehicle_id = 1;

easy

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

What are the details of the car with id 1?

SELECT vehicle_details FROM Vehicles WHERE vehicle_id = 1;

easy

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

List the first name middle name and last name of all staff.

SELECT first_name , middle_name , last_name FROM Staff;

medium

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

What are the first, middle, and last names of all staff?

SELECT first_name , middle_name , last_name FROM Staff;

medium

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

What is the birthday of the staff member with first name as Janessa and last name as Sawayn?

SELECT date_of_birth FROM Staff WHERE first_name = "Janessa" AND last_name = "Sawayn";

medium

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

What is the date of birth for the staff member named Janessa Sawayn?

SELECT date_of_birth FROM Staff WHERE first_name = "Janessa" AND last_name = "Sawayn";

medium

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

When did the staff member with first name as Janessa and last name as Sawayn join the company?

SELECT date_joined_staff FROM Staff WHERE first_name = "Janessa" AND last_name = "Sawayn";

medium

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

When did the staff member named Janessa Sawayn join the company?

SELECT date_joined_staff FROM Staff WHERE first_name = "Janessa" AND last_name = "Sawayn";

medium

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

When did the staff member with first name as Janessa and last name as Sawayn leave the company?

SELECT date_left_staff FROM Staff WHERE first_name = "Janessa" AND last_name = "Sawayn";

medium

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

When did the staff member Janessa Sawayn leave the company?

SELECT date_left_staff FROM Staff WHERE first_name = "Janessa" AND last_name = "Sawayn";

medium

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

How many staff have the first name Ludie?

SELECT count(*) FROM Staff WHERE first_name = "Ludie";

easy

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

How many employees have a first name of Ludie?

SELECT count(*) FROM Staff WHERE first_name = "Ludie";

easy

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

What is the nickname of staff with first name as Janessa and last name as Sawayn?

SELECT nickname FROM Staff WHERE first_name = "Janessa" AND last_name = "Sawayn";

medium

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

What is the nickname of the employee named Janessa Sawayn?

SELECT nickname FROM Staff WHERE first_name = "Janessa" AND last_name = "Sawayn";

medium

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

How many staff in total?

SELECT count(*) FROM Staff;

easy

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

How many employees are there?

SELECT count(*) FROM Staff;

easy

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

Which city does staff with first name as Janessa and last name as Sawayn live?

SELECT T1.city FROM Addresses AS T1 JOIN Staff AS T2 ON T1.address_id = T2.staff_address_id WHERE T2.first_name = "Janessa" AND T2.last_name = "Sawayn";

medium

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

In what city does Janessa Sawayn live?

SELECT T1.city FROM Addresses AS T1 JOIN Staff AS T2 ON T1.address_id = T2.staff_address_id WHERE T2.first_name = "Janessa" AND T2.last_name = "Sawayn";

medium

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

Which country and state does staff with first name as Janessa and last name as Sawayn lived?

SELECT T1.country , T1.state_province_county FROM Addresses AS T1 JOIN Staff AS T2 ON T1.address_id = T2.staff_address_id WHERE T2.first_name = "Janessa" AND T2.last_name = "Sawayn";

extra

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

In which country and state does Janessa Sawayn live?

SELECT T1.country , T1.state_province_county FROM Addresses AS T1 JOIN Staff AS T2 ON T1.address_id = T2.staff_address_id WHERE T2.first_name = "Janessa" AND T2.last_name = "Sawayn";

extra

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

How long is the total lesson time took by customer with first name as Rylan and last name as Goodwin?

SELECT sum(T1.lesson_time) FROM Lessons AS T1 JOIN Customers AS T2 ON T1.customer_id = T2.customer_id WHERE T2.first_name = "Rylan" AND T2.last_name = "Goodwin";

medium

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

How long is the total lesson time took by the customer named Rylan Goodwin?

SELECT sum(T1.lesson_time) FROM Lessons AS T1 JOIN Customers AS T2 ON T1.customer_id = T2.customer_id WHERE T2.first_name = "Rylan" AND T2.last_name = "Goodwin";

medium

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

What is the zip code of staff with first name as Janessa and last name as Sawayn lived?

SELECT T1.zip_postcode FROM Addresses AS T1 JOIN Staff AS T2 ON T1.address_id = T2.staff_address_id WHERE T2.first_name = "Janessa" AND T2.last_name = "Sawayn";

medium

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

What is the zip code of the hosue of the employee named Janessa Sawayn?

SELECT T1.zip_postcode FROM Addresses AS T1 JOIN Staff AS T2 ON T1.address_id = T2.staff_address_id WHERE T2.first_name = "Janessa" AND T2.last_name = "Sawayn";

medium

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

How many staff live in state Georgia?

SELECT count(*) FROM Addresses WHERE state_province_county = "Georgia";

easy

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

How many employees live in Georgia?

SELECT count(*) FROM Addresses WHERE state_province_county = "Georgia";

easy

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

Find out the first name and last name of staff lived in city Damianfort.

SELECT T2.first_name , T2.last_name FROM Addresses AS T1 JOIN Staff AS T2 ON T1.address_id = T2.staff_address_id WHERE T1.city = "Damianfort";

medium

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

What is the first and last name of all employees who live in the city Damianfort?

SELECT T2.first_name , T2.last_name FROM Addresses AS T1 JOIN Staff AS T2 ON T1.address_id = T2.staff_address_id WHERE T1.city = "Damianfort";

medium

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

Which city lives most of staffs? List the city name and number of staffs.

SELECT T1.city , count(*) FROM Addresses AS T1 JOIN Staff AS T2 ON T1.address_id = T2.staff_address_id GROUP BY T1.city ORDER BY count(*) DESC LIMIT 1;

extra

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

In which city do the most employees live and how many of them live there?

SELECT T1.city , count(*) FROM Addresses AS T1 JOIN Staff AS T2 ON T1.address_id = T2.staff_address_id GROUP BY T1.city ORDER BY count(*) DESC LIMIT 1;

extra

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

List the states which have between 2 to 4 staffs living there.

SELECT T1.state_province_county FROM Addresses AS T1 JOIN Staff AS T2 ON T1.address_id = T2.staff_address_id GROUP BY T1.state_province_county HAVING count(*) BETWEEN 2 AND 4;

medium

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

What are the names of the states that have 2 to 4 employees living there?

SELECT T1.state_province_county FROM Addresses AS T1 JOIN Staff AS T2 ON T1.address_id = T2.staff_address_id GROUP BY T1.state_province_county HAVING count(*) BETWEEN 2 AND 4;

medium

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

List the first name and last name of all customers.

SELECT first_name , last_name FROM Customers;

medium

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

What are the first and last names for all customers?

SELECT first_name , last_name FROM Customers;

medium

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

List email address and birthday of customer whose first name as Carole.

SELECT email_address , date_of_birth FROM Customers WHERE first_name = "Carole"

medium

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

What are the email addresses and date of births for all customers who have a first name of Carole?

SELECT email_address , date_of_birth FROM Customers WHERE first_name = "Carole"

medium

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

List phone number and email address of customer with more than 2000 outstanding balance.

SELECT phone_number , email_address FROM Customers WHERE amount_outstanding > 2000;

medium

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

What are the phone numbers and email addresses of all customers who have an outstanding balance of more than 2000?

SELECT phone_number , email_address FROM Customers WHERE amount_outstanding > 2000;

medium

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

What is the status code, mobile phone number and email address of customer with last name as Kohler or first name as Marina?

SELECT customer_status_code , cell_mobile_phone_number , email_address FROM Customers WHERE first_name = "Marina" OR last_name = "Kohler"

extra

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

What is the status code, phone number, and email address of the customer whose last name is Kohler or whose first name is Marina?

SELECT customer_status_code , cell_mobile_phone_number , email_address FROM Customers WHERE first_name = "Marina" OR last_name = "Kohler"

extra

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

When are the birthdays of customer who are classified as 'Good Customer' status?

SELECT date_of_birth FROM Customers WHERE customer_status_code = 'Good Customer'

easy

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

What is the date of birth of every customer whose status code is 'Good Customer'?

SELECT date_of_birth FROM Customers WHERE customer_status_code = 'Good Customer'

easy

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

When did customer with first name as Carole and last name as Bernhard became a customer?

SELECT date_became_customer FROM Customers WHERE first_name = "Carole" AND last_name = "Bernhard";

medium

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

When did Carole Bernhard first become a customer?

SELECT date_became_customer FROM Customers WHERE first_name = "Carole" AND last_name = "Bernhard";

medium

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

How many customers in total?

SELECT count(*) FROM Customers;

easy

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

How many customers are there?

SELECT count(*) FROM Customers;

easy

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

List all customer status codes and the number of customers having each status code.

SELECT customer_status_code , count(*) FROM Customers GROUP BY customer_status_code;

medium

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

For each customer status code, how many customers are classified that way?

SELECT customer_status_code , count(*) FROM Customers GROUP BY customer_status_code;

medium

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

Which customer status code has least number of customers?

SELECT customer_status_code FROM Customers GROUP BY customer_status_code ORDER BY count(*) ASC LIMIT 1;

hard

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

What is the status code with the least number of customers?

SELECT customer_status_code FROM Customers GROUP BY customer_status_code ORDER BY count(*) ASC LIMIT 1;

hard

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

How many lessons taken by customer with first name as Rylan and last name as Goodwin were completed?

SELECT count(*) FROM Lessons AS T1 JOIN Customers AS T2 ON T1.customer_id = T2.customer_id WHERE T2.first_name = "Rylan" AND T2.last_name = "Goodwin" AND T1.lesson_status_code = "Completed";

medium

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

How many lessons did the customer Ryan Goodwin complete?

SELECT count(*) FROM Lessons AS T1 JOIN Customers AS T2 ON T1.customer_id = T2.customer_id WHERE T2.first_name = "Rylan" AND T2.last_name = "Goodwin" AND T1.lesson_status_code = "Completed";

medium

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

What is maximum, minimum and average amount of outstanding of customer?

SELECT max(amount_outstanding) , min(amount_outstanding) , avg(amount_outstanding) FROM Customers;

medium

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

What is the maximum, minimum, and average amount of money outsanding for all customers?

SELECT max(amount_outstanding) , min(amount_outstanding) , avg(amount_outstanding) FROM Customers;

medium

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

List the first name and last name of customers have the amount of outstanding between 1000 and 3000.

SELECT first_name , last_name FROM Customers WHERE amount_outstanding BETWEEN 1000 AND 3000;

medium

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

What are the first and last names of all customers with between 1000 and 3000 dollars outstanding?

SELECT first_name , last_name FROM Customers WHERE amount_outstanding BETWEEN 1000 AND 3000;

medium

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

List first name and last name of customers lived in city Lockmanfurt.

SELECT T1.first_name , T1.last_name FROM Customers AS T1 JOIN Addresses AS T2 ON T1.customer_address_id = T2.address_id WHERE T2.city = "Lockmanfurt";

medium

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

What are the first and last names of all customers who lived in Lockmanfurt?

SELECT T1.first_name , T1.last_name FROM Customers AS T1 JOIN Addresses AS T2 ON T1.customer_address_id = T2.address_id WHERE T2.city = "Lockmanfurt";

medium

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

Which country does customer with first name as Carole and last name as Bernhard lived in?

SELECT T2.country FROM Customers AS T1 JOIN Addresses AS T2 ON T1.customer_address_id = T2.address_id WHERE T1.first_name = "Carole" AND T1.last_name = "Bernhard"

medium

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

What is the country in which the customer Carole Bernhard lived?

SELECT T2.country FROM Customers AS T1 JOIN Addresses AS T2 ON T1.customer_address_id = T2.address_id WHERE T1.first_name = "Carole" AND T1.last_name = "Bernhard"

medium

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

What is zip code of customer with first name as Carole and last name as Bernhard?

SELECT T2.zip_postcode FROM Customers AS T1 JOIN Addresses AS T2 ON T1.customer_address_id = T2.address_id WHERE T1.first_name = "Carole" AND T1.last_name = "Bernhard"

medium

CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

What is the zip code of the customer Carole Bernhard?

SELECT T2.zip_postcode FROM Customers AS T1 JOIN Addresses AS T2 ON T1.customer_address_id = T2.address_id WHERE T1.first_name = "Carole" AND T1.last_name = "Bernhard"

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CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

Which city does has most number of customers?

SELECT T2.city FROM Customers AS T1 JOIN Addresses AS T2 ON T1.customer_address_id = T2.address_id GROUP BY T2.city ORDER BY count(*) DESC LIMIT 1;

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CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

What is the city with the most customers?

SELECT T2.city FROM Customers AS T1 JOIN Addresses AS T2 ON T1.customer_address_id = T2.address_id GROUP BY T2.city ORDER BY count(*) DESC LIMIT 1;

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CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

How much in total does customer with first name as Carole and last name as Bernhard paid?

SELECT sum(T1.amount_payment) FROM Customer_Payments AS T1 JOIN Customers AS T2 ON T1.customer_id = T2.customer_id WHERE T2.first_name = "Carole" AND T2.last_name = "Bernhard"

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CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

What is the total amount of moeny paid by the customer Carole Bernhard?

SELECT sum(T1.amount_payment) FROM Customer_Payments AS T1 JOIN Customers AS T2 ON T1.customer_id = T2.customer_id WHERE T2.first_name = "Carole" AND T2.last_name = "Bernhard"

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CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

List the number of customers that did not have any payment history.

SELECT count(*) FROM Customers WHERE customer_id NOT IN ( SELECT customer_id FROM Customer_Payments );

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CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

How many customers have no payment histories?

SELECT count(*) FROM Customers WHERE customer_id NOT IN ( SELECT customer_id FROM Customer_Payments );

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CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

List first name and last name of customers that have more than 2 payments.

SELECT T2.first_name , T2.last_name FROM Customer_Payments AS T1 JOIN Customers AS T2 ON T1.customer_id = T2.customer_id GROUP BY T1.customer_id HAVING count(*) > 2;

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CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

What are the first and last names of all customers with more than 2 payments?

SELECT T2.first_name , T2.last_name FROM Customer_Payments AS T1 JOIN Customers AS T2 ON T1.customer_id = T2.customer_id GROUP BY T1.customer_id HAVING count(*) > 2;

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CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

List all payment methods and number of payments using each payment methods.

SELECT payment_method_code , count(*) FROM Customer_Payments GROUP BY payment_method_code;

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CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

For each payment method, how many payments were made?

SELECT payment_method_code , count(*) FROM Customer_Payments GROUP BY payment_method_code;

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CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

How many lessons were in cancelled state?

SELECT count(*) FROM Lessons WHERE lesson_status_code = "Cancelled";

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CREATE TABLE Addresses (address_id number, line_1_number_building text, city text, zip_postcode text, state_province_county text, country text); CREATE TABLE Staff (staff_id number, staff_address_id number, nickname text, first_name text, middle_name text, last_name text, date_of_birth time, date_joined_staff time, date_left_staff time); CREATE TABLE Vehicles (vehicle_id number, vehicle_details text); CREATE TABLE Customers (customer_id number, customer_address_id number, customer_status_code text, date_became_customer time, date_of_birth time, first_name text, last_name text, amount_outstanding number, email_address text, phone_number text, cell_mobile_phone_number text); CREATE TABLE Customer_Payments (customer_id number, datetime_payment time, payment_method_code text, amount_payment number); CREATE TABLE Lessons (lesson_id number, customer_id number, lesson_status_code text, staff_id number, vehicle_id number, lesson_date time, lesson_time text, price number);

How many lessons have been cancelled?

SELECT count(*) FROM Lessons WHERE lesson_status_code = "Cancelled";

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