Lowe Raivio

queries/core/film_insertion/insert_films.sql

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+INSERT INTO films
+(title, genre, release_year,score)
+VALUES
+('The Shawshank Redemption', 'Drama', 1994, 9),
+('The Godfather', 'Crime', 1972, 9),
+('The Dark Knight', 'Action', 2008, 9),
+('Alien', 'SciFi', 1979, 9),
+('Total Recall', 'SciFi', 1990, 8),
+('The Matrix', 'SciFi', 1999, 8),
+('The Matrix Resurrections', 'SciFi', 2021, 5),
+('The Matrix Reloaded', 'SciFi', 2003, 6),
+('The Hunt for Red October', 'Thriller', 1990, 7),
+('Misery', 'Thriller', 1990, 7),
+('The Power Of The Dog', 'Western', 2021, 6),
+('Hell or High Water', 'Western', 2016, 8),
+('The Good the Bad and the Ugly', 'Western', 1966, 9),
+('Unforgiven', 'Western', 1992, 7);

queries/core/film_selection/All_films.sql

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+SELECT * from films

queries/core/film_selection/All_films_ordered_by_rating_descending.sql

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+SELECT * FROM films f ORDER BY f.score DESC

queries/core/film_selection/All_films_with_a_rating_of_7_or_lower.sql

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+SELECT * FROM films f WHERE f.score <= 7

queries/core/film_selection/All_films_with_a_rating_of_8_or_higher.sql

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+SELECT * FROM films f WHERE f.score >= 8

queries/core/film_selection/films_released_after_1990.sql

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+SELECT * from films f WHERE f.release_year > 1990

queries/core/film_selection/films_released_before_2000.sql

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+SELECT * FROM films f WHERE f.release_year < 2000

queries/core/film_selection/films_released_between_1990_and_1999.sql

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+SELECT * FROM films f WHERE f.release_year > 1990 and f.release_year < 1999

queries/core/film_selection/films_released_in_1990.sql

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+SELECT * FROM films f WHERE f.release_year = 1990

queries/core/film_selection/films_that_have_the_world__Matrix__in_their_title.sql

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+SELECT * FROM films f WHERE f.title LIKE '%Matrix%';

queries/core/film_selection/films_with_any_genre_apart_from__SciFi_.sql

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+SELECT * FROM films f WHERE f.genre != 'SciFi';

queries/core/film_selection/films_with_the_genre_of__SciFi_.sql

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+SELECT * FROM films f WHERE f.genre = 'SciFi';

queries/core/film_selection/films_with_the_genre_of__Western__or__Scifi_.sql

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+SELECT * FROM films f WHERE f.genre  IN  ('SciFi', 'Western');

queries/core/film_selection/films_with_the_genre_of__Western__released_before_2000.sql

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+SELECT * FROM films f WHERE f.genre = 'Western' and f.release_year < 2000

queries/core/film_table_creation/create_film_table.sql

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+CREATE TABLE films (
+	id serial PRIMARY KEY,
+	title VARCHAR(255) NOT NULL,
+	genre VARCHAR(40) NOT NULL,
+	release_year INT NOT NULL,
+	score INT NOT NULL CHECK (
+		score >= 0
+		AND score <= 10
+	),
+	UNIQUE (id),
+	UNIQUE (title)
+)
+

queries/extension_1/ext1_average_film_rating.sql

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+
+SELECT AVG(f.score) FROM films f

queries/extension_1/ext1_average_film_rating_per_genre.sql

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+SELECT f.genre, AVG(f.score) FROM films f GROUP BY f.genre

queries/extension_1/ext1_total_nr_films.sql

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+SELECT COUNT(*) FROM films 

queries/extension_2/create_director_and_newFilms_table.sql

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+CREATE TABLE directors(
+	directorId serial PRIMARY KEY,
+	name VARCHAR(50),
+	unique(directorId)
+);
+
+CREATE TABLE newfilms (
+	id serial PRIMARY KEY,
+	title VARCHAR(255) NOT NULL,
+	genre VARCHAR(40) NOT NULL,
+	release_year INT NOT NULL,
+	score INT NOT NULL CHECK (
+		score >= 0
+		AND score <= 10
+	),
+	directorID int,
+	CONSTRAINT fk_director FOREIGN KEY (directorID) REFERENCES directors(directorId),
+	UNIQUE (id),
+	UNIQUE (title)
+);
+

queries/extension_2/director_insertion.sql

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+INSERT INTO directors
+(name)
+VALUES
+('Bobby'),
+('Bobson'),
+('Bobuel'),
+('Bobster'),
+('Bobifer'),
+('Tord');

queries/extension_2/join_directors_newFilms.sql

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+
+
+
+SELECT f.*, d.name FROM newfilms f INNER JOIN directors d ON f.directorid = d.directorid

queries/extension_2/newFilms_insertion.sql

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+INSERT INTO newfilms
+(title, genre, release_year,score, directorid)
+VALUES
+('The Shawshank Redemption', 'Drama', 1994, 9, 1),
+('The Godfather', 'Crime', 1972, 9, 2),
+('The Dark Knight', 'Action', 2008, 9, 3),
+('Alien', 'SciFi', 1979, 9, 2),
+('Total Recall', 'SciFi', 1990, 8, 4),
+('The Matrix', 'SciFi', 1999, 8, 5),
+('The Matrix Resurrections', 'SciFi', 2021, 5, 6),
+('The Matrix Reloaded', 'SciFi', 2003, 6, 6),
+('The Hunt for Red October', 'Thriller', 1990, 7, 4),
+('Misery', 'Thriller', 1990, 7, 2),
+('The Power Of The Dog', 'Western', 2021, 6, 1),
+('Hell or High Water', 'Western', 2016, 8, 1),
+('The Good the Bad and the Ugly', 'Western', 1966, 9, 3),
+('Unforgiven', 'Western', 1992, 7, 3);

queries/extension_3/select_directors_nrOfFilms.sql

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+
+
+
+SELECT  d.name, COUNT(f.*) FROM directors d INNER JOIN newfilms f ON f.directorid = d.directorid GROUP BY f.directorid, d.name