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customer (customer_id, first_name, last_name, customer_email, customer_address, city, customer_phone) airline (airline_code, airline_name, airline_country) city( city_id, city_name, post_code, country, province) flight ( flight_no, airline_code, origin_city, destination_city) flight_schedule (schedule_id, flight_no, departure_date, departure_time, arrival_date, arrival_time) booking ( booking _number, customer_id, schedule_id, booking_class, booking_status)

customer (customer_id, first_name, last_name, customer_email, customer_address, city, customer_phone) airline (airline_code, airline_name, airline_country) city( city_id, city_name, post_code, country, province) flight ( flight_no, airline_code, origin_city, destination_city) flight_schedule (schedule_id, flight_no, departure_date, departure_time, arrival_date, arrival_time) booking ( booking _number, customer_id, schedule_id, booking_class, booking_status)

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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SQL QUESTION~~

Write SQL statement to list first name who have more than 2 bookings

customer (customer_id, first_name, last_name, customer_email, customer_address, city, customer_phone) airline (airline_code, airline_name, airline_country) city( city_id, city_name, post_code, country, province) flight ( flight_no, airline_code, origin_city, destination_city) flight_schedule (schedule_id, flight_no, departure_date, departure_time, arrival_date, arrival_time) booking ( booking _number, customer_id, schedule_id, booking_class, booking_status) The customer table contains information about customers and customer_id is the primary key. The field city is a foreign key and refers to the city relation. The airline table contains information about airlines and airline_code is the primary key. The city table contains information about cities and city_id is the primary key. Also, the post_code is unique for each city. The flight table contains information about flights and flight_no is the primary key. The fields airline_code, origin_city, and destination_city are foreign keys and refer to airline, city, and city relations respectively. The flight_schedule table contains information about scheduled trips for the flight and schedule_id is the primary key. The field flight_no is a foreign key and refers to the flight relation. The booking table contains information about bookings and booking_number is the primary key. A booking will be for a customer for a given flight schedule. The fields customer id and schedule id are foreign keys and refer to the customer and flight_schedule relations respectively.
Transcribed Image Text:customer (customer_id, first_name, last_name, customer_email, customer_address, city, customer_phone) airline (airline_code, airline_name, airline_country) city( city_id, city_name, post_code, country, province) flight ( flight_no, airline_code, origin_city, destination_city) flight_schedule (schedule_id, flight_no, departure_date, departure_time, arrival_date, arrival_time) booking ( booking _number, customer_id, schedule_id, booking_class, booking_status) The customer table contains information about customers and customer_id is the primary key. The field city is a foreign key and refers to the city relation. The airline table contains information about airlines and airline_code is the primary key. The city table contains information about cities and city_id is the primary key. Also, the post_code is unique for each city. The flight table contains information about flights and flight_no is the primary key. The fields airline_code, origin_city, and destination_city are foreign keys and refer to airline, city, and city relations respectively. The flight_schedule table contains information about scheduled trips for the flight and schedule_id is the primary key. The field flight_no is a foreign key and refers to the flight relation. The booking table contains information about bookings and booking_number is the primary key. A booking will be for a customer for a given flight schedule. The fields customer id and schedule id are foreign keys and refer to the customer and flight_schedule relations respectively.
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