Oyvind Timian Dokk Husveg

dbTablesAndData.sql

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+CREATE TABLE Roles (
+  id SERIAL primary key,
+  name VARCHAR(100) UNIQUE NOT NULL
+);
+
+CREATE TABLE Genres (
+  id SERIAL primary key,
+  name VARCHAR(100) UNIQUE NOT NULL
+);
+
+CREATE TABLE Countries (
+  id SERIAL primary key,
+  name VARCHAR(100) UNIQUE NOT NULL
+);
+
+CREATE table People (
+  id SERIAL primary key,
+  name VARCHAR(100) UNIQUE NOT NULL,
+  dob date NULL,
+  email VARCHAR(100) NULL,
+  country_fk INTEGER NULL,
+  FOREIGN KEY (country_fk) REFERENCES Countries(id)
+);
+
+CREATE TABLE PeopleRole (
+  people_fk INTEGER NOT NULL,
+  role_fk INTEGER NOT NULL,
+  FOREIGN KEY (people_fk) REFERENCES People(id),
+  FOREIGN KEY (role_fk) REFERENCES Roles(id),
+  PRIMARY KEY (people_fk, role_fk)
+);
+
+CREATE TABLE Movies (
+  id SERIAL primary key,
+  title VARCHAR(100) UNIQUE NOT NULL, 
+  year INTEGER NOT NULL,
+  rating INTEGER CONSTRAINT rating_range CHECK (rating BETWEEN 0 AND 10) NOT NULL,
+  genre_fk INTEGER NOT NULL,
+  director_fk INTEGER NOT NULL,
+  star_fk INTEGER NOT NULL, 
+  writer_fk INTEGER NOT NULL,
+  FOREIGN KEY (genre_fk) references Genres(id),
+  FOREIGN KEY (director_fk) REFERENCES People(id),
+  FOREIGN KEY (star_fk) REFERENCES People(id),
+  FOREIGN KEY (writer_fk) REFERENCES People(id)
+);
+
+
+INSERT INTO roles (name)
+VALUES 
+  ('director'),
+  ('star'),
+  ('writer');
+
+
+INSERT INTO countries (name)
+VALUES 
+  ('USA'),
+  ('CANADA'),
+  ('UK'),
+  ('Greece'),
+  ('Netherlands'),
+  ('Poland'),
+  ('France');
+
+
+INSERT INTO Genres (name)
+VALUES 
+  ('Science Fiction'),
+  ('Drama'),
+  ('Romance'),
+  ('Historical'),
+  ('Thriller');
+
+INSERT INTO people (name, dob, email, country_fk)
+VALUES 
+  ('Stanley Kubrick',          NULL,       null, 1),
+  ('George Lucas',             NULL,       '[email protected]', 1),
+  ('Robert Mulligan',          NULL,       null, 1),
+  ('James Cameron',            NULL,       '[email protected]', 2),
+  ('David Lean',               null,       null, 3),
+  ('Anthony Mann',             null,       null, 1),
+  ('Theodoros Angelopoulos',   null,       '[email protected]', 4),
+  ('Paul Verhoeven',           null,       null, 5),
+  ('Krzysztof Kieslowski',     null,       '[email protected]', 6),
+  ('Jean-Paul Rappeneau',      null,       null, 7),
+  ('Keir Dullea',              '1936-05-30', NULL, NULL),
+  ('Mark Hamill',              '1951-09-25', NULL, NULL),
+  ('Gregory Peck',             '1916-04-05', NULL, NULL),
+  ('Leonardo DiCaprio',        '1974-11-11', NULL, NULL),
+  ('Julie Christie',           '1940-04-14', NULL, NULL),
+  ('Charlton Heston',          '1923-10-04', NULL, NULL),
+  ('Manos Katrakis',           '1908-08-14', NULL, NULL),
+  ('Rutger Hauer',             '1944-01-23', NULL, NULL),
+  ('Juliette Binoche',         '1964-03-09', NULL, NULL),
+  ('Gerard Depardieu',         '1948-12-27', NULL, NULL),
+  ('Arthur C Clarke',          NULL,	   '[email protected]',  null),
+  ('Harper Lee',               NULL,	   '[email protected]',     null),

extension2.sql

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+CREATE TABLE "Cast" (
+  movie_fk INTEGER NOT NULL,
+  actor_fk INTEGER NOT NULL,
+  PRIMARY KEY (movie_fk, actor_fk),
+  FOREIGN KEY (movie_fk) REFERENCES Movies(id),
+  FOREIGN KEY (actor_fk) REFERENCES People(id)
+);
+
+INSERT INTO Roles (name)
+VALUES ('actor');
+
+
+INSERT INTO people (name, dob, email, country_fk)
+VALUES  
+  ('Kate Winslet',       '1975-08-05', NULL, 3),
+  ('Harrison Ford',      '1942-07-13', NULL, 1),
+  ('Carrie Fisher',      '1956-09-21', NULL, 1),
+  ('Alec Guinness',      '1914-04-2', NULL, 3);
+
+INSERT INTO "Cast" (movie_fk, actor_fk)
+VALUES 
+  (4, 26), -- Kate winslet in titanic
+  (2, 27), -- Harrison Ford in star wars 1977
+  (2, 28), -- Carrie Fishe in star wars 1977
+  (2, 29), -- Alec Guinness in star wars 1977
+  (1,  11), -- keir dullea
+  (2,  12), -- mark hamill
+  (3,  13), -- gregory peck
+  (4,  14), -- leonardo dicaprio
+  (5,  15), -- Julie christie
+  (6,  16), -- Charlton Heston
+  (7,  17), -- Manos Katrakis
+  (8,  18), -- Rugter hauer
+  (9,  19), -- Jliette binoche
+  (10, 20) -- Gerard depardiue
+;
+
+
+
+

query1.sql

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+[200~-- Show title and director name for all films
+SELECT
+  m.title,
+  p.name AS Director
+FROM 
+  Movies m
+LEFT JOIN 
+  People p ON p.id = m.director_fk;

query10.sql

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+-- Bonus 5: List movies that are either Historical or Romance
+Select m.title, g.name AS Genre
+FROM movies m
+LEFT JOIN genres g on m.genre_fk = g.id
+WHERE g.name = 'Historical' OR g.name = 'Romance';

query2.sql

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+-- Show the title, director and star name for all films
+SELECT m.title, p.name as Director, p2.name as Star
+FROM 
+  Movies m
+LEFT JOIN People p ON p.id = m.director_fk
+LEFT JOIN People p2 On p2.id = m.star_fk;

query3.sql

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+-- Show the title of films where the director is from the USA
+SELECT
+  m.title
+FROM 
+  Movies m
+JOIN 
+  People p ON p.id = m.director_fk
+LEFT JOIN countries c on p.country_fk = c.id
+Where c.name = 'USA';

query4.sql

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+-- Show only those films where the writer and the director are the same person
+SELECT
+  title
+FROM 
+  Movies
+WHERE director_fk = writer_fk;

query5.sql

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+-- Show directors and film titles for films with a score of 8 or higher
+SELECT
+  m.title,
+  p.name AS Director
+FROM 
+  Movies m
+LEFT JOIN 
+  People p ON p.id = m.director_fk
+WHERE m.rating >= 8;

query6.sql

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+-- Bonus query 1: List all people and the roles they have
+SELECT
+  p.name AS Person,
+  String_AGG(r.name, ', ')  AS roles
+FROM 
+  People p
+LEFT JOIN PeopleRole pr ON p.id = pr.people_fk
+LEFT JOIN Roles r ON pr.role_fk = r.id
+Group BY 
+  p.id
+ORDER BY p.id;

query7.sql

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+-- Bonus query 2: Show the number of roles each person has
+SELECT
+  p.name AS Person,
+  Count(r.name)  AS roles_count
+FROM People p
+LEFT JOIN PeopleRole pr ON p.id = pr.people_fk
+LEFT JOIN Roles r ON pr.role_fk = r.id
+GROUP BY p.name, p.id
+HAVING Count(r.name) > 1
+ORDER BY p.id, Count(r.name);

query8.sql

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+-- Bonus query 3: List all movies along with their genre name
+SELECT m.title, g.name 
+FROM Movies m
+LEFT JOIN Genres g ON g.id = m.genre_fk;

query9.sql

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+-- Bonus query 4: Show how many directors each country has
+SELECT c.name, Count(p.country_fk)
+FROM People p
+LEFT JOIN countries c on c.id = p.country_fk
+GROUP BY c.name
+ORDER BY Count(p.country_fk);