Mona Eikli

Extension_2.sql

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+-- Extension 2
+
+-- Create a new table for film cast
+CREATE TABLE film_cast (
+  film_id   INT REFERENCES films(film_id),
+  person_id INT REFERENCES people(person_id),
+  PRIMARY KEY (film_id, person_id)
+);
+
+-- Add some actors
+INSERT INTO people (full_name) VALUES
+  ('Gary Lockwood'),
+  ('Harrison Ford'),
+  ('Carrie Fisher'),
+  ('Alec Guinness'),
+  ('Kate Winslet'),
+  ('Omar Sharif'),
+  ('Sophia Loren'),
+  ('Jeroen Krabbé'),
+  ('Benoît Régent'),
+  ('Anne Brochet')
+
+
+-- Insert actors into the film_cast table
+INSERT INTO film_cast (film_id, person_id)
+SELECT f.film_id, p.person_id FROM films f, people p
+WHERE f.title='2001: A Space Odyssey' AND p.full_name IN ('Keir Dullea','Gary Lockwood');
+
+
+INSERT INTO film_cast (film_id, person_id)
+SELECT f.film_id, p.person_id FROM films f, people p
+WHERE f.title='Star Wars: A New Hope' AND p.full_name IN ('Mark Hamill','Harrison Ford','Carrie Fisher','Alec Guinness');
+
+
+INSERT INTO film_cast (film_id, person_id)
+SELECT f.film_id, p.person_id FROM films f, people p
+WHERE f.title='To Kill A Mockingbird' AND p.full_name IN ('Gregory Peck');
+
+
+INSERT INTO film_cast (film_id, person_id)
+SELECT f.film_id, p.person_id FROM films f, people p
+WHERE f.title='Titanic' AND p.full_name IN ('Leonardo DiCaprio','Kate Winslet');
+
+
+INSERT INTO film_cast (film_id, person_id)
+SELECT f.film_id, p.person_id FROM films f, people p
+WHERE f.title='Dr Zhivago' AND p.full_name IN ('Julie Christie','Omar Sharif');
+
+
+INSERT INTO film_cast (film_id, person_id)
+SELECT f.film_id, p.person_id FROM films f, people p
+WHERE f.title='El Cid' AND p.full_name IN ('Charlton Heston','Sophia Loren');
+
+
+INSERT INTO film_cast (film_id, person_id)
+SELECT f.film_id, p.person_id FROM films f, people p
+WHERE f.title='Voyage to Cythera' AND p.full_name IN ('Manos Katrakis');
+
+
+INSERT INTO film_cast (film_id, person_id)
+SELECT f.film_id, p.person_id FROM films f, people p
+WHERE f.title='Soldier of Orange' AND p.full_name IN ('Rutger Hauer','Jeroen Krabbé');
+
+
+INSERT INTO film_cast (film_id, person_id)
+SELECT f.film_id, p.person_id FROM films f, people p
+WHERE f.title='Three Colours: Blue' AND p.full_name IN ('Juliette Binoche','Benoît Régent');
+
+
+INSERT INTO film_cast (film_id, person_id)
+SELECT f.film_id, p.person_id FROM films f, people p
+WHERE f.title='Cyrano de Bergerac' AND p.full_name IN ('Gerard Depardieu','Anne Brochet');
+
+
+-- Show the full name of actors in the film 'El Cid'
+SELECT p.full_name AS actor
+FROM film_cast fc
+INNER JOIN films  f ON f.film_id = fc.film_id
+INNER JOIN people p ON p.person_id = fc.person_id
+WHERE f.title = 'El Cid';

table_setup.sql

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+-- Create tables 'people' and 'films'
+CREATE TABLE people ( 
+  person_id SERIAL PRIMARY KEY,
+  full_name TEXT NOT NULL UNIQUE,
+  country   TEXT,
+  dob       DATE,
+  email     TEXT
+);
+
+CREATE TABLE films (
+  film_id SERIAL PRIMARY KEY,
+  title   TEXT NOT NULL,
+  year    INT,
+  genre   TEXT,
+  score   INT,
+  director_id INT REFERENCES people(person_id),
+  star_id     INT REFERENCES people(person_id),
+  writer_id   INT REFERENCES people(person_id)
+);
+
+-- Insert data to tables
+INSERT INTO people (full_name, country) VALUES
+ ('Stanley Kubrick','USA'),
+ ('George Lucas','USA'),
+ ('Robert Mulligan','USA'),
+ ('James Cameron','Canada'),
+ ('David Lean','UK'),
+ ('Anthony Mann','USA'),
+ ('Theodoros Angelopoulos','Greece'),
+ ('Paul Verhoeven','Netherlands'),
+ ('Krzysztof Kieslowski','Poland'),
+ ('Jean-Paul Rappeneau','France');
+
+INSERT INTO people (full_name, dob) VALUES
+ ('Keir Dullea','1936-05-30'),
+ ('Mark Hamill','1951-09-25'),
+ ('Gregory Peck','1916-04-05'),
+ ('Leonardo DiCaprio','1974-11-11'),
+ ('Julie Christie','1940-04-14'),
+ ('Charlton Heston','1923-10-04'),
+ ('Manos Katrakis','1908-08-14'),
+ ('Rutger Hauer','1944-01-23'),
+ ('Juliette Binoche','1964-03-09'),
+ ('Gerard Depardieu','1948-12-27');
+
+INSERT INTO people (full_name, email) VALUES
+ ('Arthur C Clarke','[email protected]'),
+ ('George Lucas','[email protected]'),
+ ('Harper Lee','[email protected]'),
+ ('James Cameron','[email protected]'),
+ ('Boris Pasternak','[email protected]'),
+ ('Frederick Frank','[email protected]'),
+ ('Theodoros Angelopoulos','[email protected]'),
+ ('Erik Hazelhoff Roelfzema','[email protected]'),
+ ('Krzysztof Kieslowski','[email protected]'),
+ ('Edmond Rostand','[email protected]')
+ON CONFLICT (full_name) DO UPDATE
+SET email = EXCLUDED.email;
+
+
+INSERT INTO films (title, year, genre, score, director_id, star_id, writer_id)
+SELECT '2001: A Space Odyssey',1968,'Science Fiction',10,
+       (SELECT person_id FROM people WHERE full_name='Stanley Kubrick'),
+       (SELECT person_id FROM people WHERE full_name='Keir Dullea'),
+       (SELECT person_id FROM people WHERE full_name='Arthur C Clarke');
+
+INSERT INTO films (title, year, genre, score, director_id, star_id, writer_id)
+SELECT 'Star Wars: A New Hope',1977,'Science Fiction',7,
+       (SELECT person_id FROM people WHERE full_name='George Lucas'),
+       (SELECT person_id FROM people WHERE full_name='Mark Hamill'),
+       (SELECT person_id FROM people WHERE full_name='George Lucas');
+
+INSERT INTO films (title, year, genre, score, director_id, star_id, writer_id)
+SELECT 'To Kill A Mockingbird',1962,'Drama',10,
+       (SELECT person_id FROM people WHERE full_name='Robert Mulligan'),
+       (SELECT person_id FROM people WHERE full_name='Gregory Peck'),
+       (SELECT person_id FROM people WHERE full_name='Harper Lee');
+
+INSERT INTO films (title, year, genre, score, director_id, star_id, writer_id)
+SELECT 'Titanic',1997,'Romance',5,
+       (SELECT person_id FROM people WHERE full_name='James Cameron'),
+       (SELECT person_id FROM people WHERE full_name='Leonardo DiCaprio'),
+       (SELECT person_id FROM people WHERE full_name='James Cameron');
+
+INSERT INTO films (title, year, genre, score, director_id, star_id, writer_id)
+SELECT 'Dr Zhivago',1965,'Historical',8,
+       (SELECT person_id FROM people WHERE full_name='David Lean'),
+       (SELECT person_id FROM people WHERE full_name='Julie Christie'),
+       (SELECT person_id FROM people WHERE full_name='Boris Pasternak');
+
+INSERT INTO films (title, year, genre, score, director_id, star_id, writer_id)
+SELECT 'El Cid',1961,'Historical',6,
+       (SELECT person_id FROM people WHERE full_name='Anthony Mann'),
+       (SELECT person_id FROM people WHERE full_name='Charlton Heston'),
+       (SELECT person_id FROM people WHERE full_name='Frederick Frank');
+
+INSERT INTO films (title, year, genre, score, director_id, star_id, writer_id)
+SELECT 'Voyage to Cythera',1984,'Drama',8,
+       (SELECT person_id FROM people WHERE full_name='Theodoros Angelopoulos'),
+       (SELECT person_id FROM people WHERE full_name='Manos Katrakis'),
+       (SELECT person_id FROM people WHERE full_name='Theodoros Angelopoulos');
+
+INSERT INTO films (title, year, genre, score, director_id, star_id, writer_id)
+SELECT 'Soldier of Orange',1977,'Thriller',8,
+       (SELECT person_id FROM people WHERE full_name='Paul Verhoeven'),
+       (SELECT person_id FROM people WHERE full_name='Rutger Hauer'),
+       (SELECT person_id FROM people WHERE full_name='Erik Hazelhoff Roelfzema');
+
+INSERT INTO films (title, year, genre, score, director_id, star_id, writer_id)
+SELECT 'Three Colours: Blue',1993,'Drama',8,
+       (SELECT person_id FROM people WHERE full_name='Krzysztof Kieslowski'),
+       (SELECT person_id FROM people WHERE full_name='Juliette Binoche'),
+       (SELECT person_id FROM people WHERE full_name='Krzysztof Kieslowski');
+
+INSERT INTO films (title, year, genre, score, director_id, star_id, writer_id)
+SELECT 'Cyrano de Bergerac',1990,'Historical',9,
+       (SELECT person_id FROM people WHERE full_name='Jean-Paul Rappeneau'),
+       (SELECT person_id FROM people WHERE full_name='Gerard Depardieu'),
+       (SELECT person_id FROM people WHERE full_name='Edmond Rostand');

task1_to_5.sql

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+-- Task 1 - Show the title and director name for all films
+SELECT 
+  f.title,
+  d.full_name AS director
+FROM films f
+JOIN people d ON d.person_id = f.director_id;
+
+
+-- Task 2 - Show the title, director and star name for all films
+SELECT 
+  f.title,
+  d.full_name AS director,
+  s.full_name AS star 
+FROM films f
+JOIN people d ON d.person_id = f.director_id
+JOIN people s ON s.person_id = f.star_id;
+
+-- Task 3 - Show the title of films where the director is from the USA
+SELECT 
+  f.title,
+  d.full_name AS director,
+  d.country
+FROM films f
+JOIN people d ON d.person_id = f.director_id
+WHERE d.country = 'USA';
+
+-- Task 4 - Show only those films where the writer and the director are the same person
+SELECT 
+  f.title,
+  d.full_name AS writer_and_director
+FROM films f
+INNER JOIN people d ON d.person_id = f.director_id
+WHERE f.director_id = f.writer_id;
+
+-- Task 5 - Show directors and film titles for films with a score of 8 or higher
+SELECT 
+  f.title,
+  f.score,
+  d.full_name AS director
+FROM films f
+INNER JOIN people d ON d.person_id = f.director_id
+WHERE score > 7;

task6.sql

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+-- Task 6 - Make at least 5 more queries to demonstrate your understanding of joins, and other relationships between tables.
+
+-- 1 - Show title and star name for all films with a score lower than 6
+SELECT 
+  f.title,
+  f.score,
+  d.full_name AS star
+FROM films f
+INNER JOIN people d ON d.person_id = f.star_id
+WHERE score < 6;
+
+-- 2 - Show all films with their year and genre, ordered by year
+SELECT 
+  f.title,
+  f.year,
+  f.genre,
+  d.full_name AS star
+FROM films f
+INNER JOIN people d ON d.person_id = f.star_id
+ORDER BY f.year;
+
+-- 3 - Show the title and star name for all films in the 'Drama' genre
+SELECT 
+  f.title,
+  s.full_name AS star
+FROM films f
+INNER JOIN people s ON s.person_id = f.star_id
+WHERE f.genre = 'Drama';
+
+-- 4 - Show the title and star name for all films where the stars date of birth is before 1950
+SELECT 
+  f.title,
+  s.full_name AS star,
+  s.dob
+FROM films f
+INNER JOIN people s ON s.person_id = f.star_id
+WHERE s.dob < '1950-01-01';
+
+-- 5 - Show the number of films directed by each country
+SELECT 
+  d.country,
+  COUNT(f.film_id) AS number_of_films
+FROM films f
+INNER JOIN people d ON d.person_id = f.director_id
+GROUP BY d.country
+ORDER BY number_of_films DESC;