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‎Project Evaluation.pdf

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‎Script 1 - Database & Table Creation - SQL.sql

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/* This is a script for creating the Library database, its tables and views, and for populating them with data */
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# Drop the database and tables, if they exist
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##################################################################################
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############################# CREATING THE DATABASE ##############################
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##################################################################################
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DROP DATABASE IF EXISTS Library;
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CREATE DATABASE Library;
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USE Library;
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##################################################################################
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############################## CREATING THE TABLES ###############################
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############################## FOR THE ENTITY SETS ###############################
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##################################################################################
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# Here, we will first create the tables for all the necessary Entity Sets:
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CREATE TABLE LibraryUser (
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UserID INTEGER NOT NULL UNIQUE AUTO_INCREMENT,
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FirstName VARCHAR(255) NOT NULL,
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LastName VARCHAR(255) NOT NULL,
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BirthDate DATE NOT NULL,
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LoanerNumber VARCHAR(6) NOT NULL UNIQUE,
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UserStatus ENUM('ACTIVE', 'TERMINATED', 'BLOCKED') NOT NULL, # Can be ACTIVE, TERMINATED, or BLOCKED
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PRIMARY KEY(UserID)
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);
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CREATE TABLE Author (
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AuthorID INTEGER NOT NULL UNIQUE AUTO_INCREMENT,
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FirstName VARCHAR(255) NOT NULL,
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LastName VARCHAR(255) NOT NULL,
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Nationality VARCHAR(255),
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PRIMARY KEY(AuthorID)
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);
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CREATE TABLE Genre (
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GenreID INTEGER NOT NULL UNIQUE AUTO_INCREMENT,
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GenreType VARCHAR(255) NOT NULL,
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GenreSubtype VARCHAR(255) NOT NULL,
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PRIMARY KEY(GenreID)
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);
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CREATE TABLE Publisher (
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PublisherID INTEGER NOT NULL UNIQUE AUTO_INCREMENT,
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PublisherName VARCHAR(255) NOT NULL UNIQUE,
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HQCountry VARCHAR(255),
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PRIMARY KEY(PublisherID)
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);
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CREATE TABLE Book (
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BookID INTEGER NOT NULL UNIQUE AUTO_INCREMENT,
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Title VARCHAR(255) NOT NULL,
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ReleaseYear YEAR,
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PageCount INTEGER,
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TotalQuantity INTEGER NOT NULL,
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TextLanguage VARCHAR(255),
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PublisherID INTEGER,
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GenreID INTEGER,
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PRIMARY KEY(BookID),
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FOREIGN KEY(PublisherID) REFERENCES Publisher(PublisherID) ON DELETE CASCADE,
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FOREIGN KEY(GenreID) REFERENCES Genre(GenreID) ON DELETE CASCADE
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);
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CREATE TABLE Fine (
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FineID INTEGER NOT NULL UNIQUE AUTO_INCREMENT,
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Amount DECIMAL(8, 2) NOT NULL,
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UserID INTEGER NOT NULL,
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IssuedDate DATE NOT NULL,
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PaymentStatus ENUM('PAID', 'NOT PAID') NOT NULL, # Can be PAID or NOT PAID
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PRIMARY KEY(FineID),
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FOREIGN KEY(UserID) REFERENCES LibraryUser(UserID) ON DELETE CASCADE
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);
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##################################################################################
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############################## CREATING THE TABLES ###############################
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####################### FOR THE MANY-TO-MANY RELATIONSHIPS #######################
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##################################################################################
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# Now, we will create the tables for all the necessary many-to-many Relationship Sets:
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CREATE TABLE Loans (
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UserID INTEGER NOT NULL,
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BookID INTEGER NOT NULL,
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LoanedDate DATE NOT NULL,
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UntilDate DATE NOT NULL, # Must always be 30 days after the LoanedDate
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ReturnedDate DATE,
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LoanedStatus ENUM('LOANED', 'FINED', 'RETURNED') NOT NULL, # Can be LOANED, FINED, or RETURNED
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PRIMARY KEY(UserID, BookID, LoanedDate),
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FOREIGN KEY(UserID) REFERENCES LibraryUser(UserID) ON DELETE CASCADE,
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FOREIGN KEY(BookID) REFERENCES Book(BookID) ON DELETE CASCADE
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);
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CREATE TABLE Reserves (
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UserID INTEGER NOT NULL,
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BookID INTEGER NOT NULL,
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ReservedDate DATE NOT NULL,
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ReservedStatus ENUM('RESERVED', 'CANCELLED', 'COMPLETED') NOT NULL, # Can be RESERVED, CANCELLED OR COMPLETED
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PRIMARY KEY(UserID, BookID, ReservedDate),
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FOREIGN KEY(UserID) REFERENCES LibraryUser(UserID) ON DELETE CASCADE,
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FOREIGN KEY(BookID) REFERENCES Book(BookID) ON DELETE CASCADE
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);
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CREATE TABLE Writes (
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AuthorID INT NOT NULL,
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BookID INT NOT NULL,
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PRIMARY KEY(AuthorID, BookID),
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FOREIGN KEY(AuthorID) REFERENCES Author(AuthorID) ON DELETE CASCADE,
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FOREIGN KEY(BookID) REFERENCES Book(BookID) ON DELETE CASCADE
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);
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##################################################################################
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############################## CREATING THE VIEWS ###############################
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##################################################################################
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# Drop views, if they exist
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DROP VIEW IF EXISTS BookAuthorsView;
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DROP VIEW IF EXISTS TotalAmountDueView;
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# Create the necessary views
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CREATE VIEW BookAuthorsView AS
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SELECT B.BookId, B.Title, GROUP_CONCAT(CONCAT(A.FirstName, ' ', A.LastName) SEPARATOR ', ') AS Author
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FROM Book B
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NATURAL JOIN Writes W
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NATURAL JOIN Author A
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GROUP BY B.BookId;
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CREATE VIEW TotalAmountDueView AS
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SELECT U.UserId, CONCAT(U.FirstName, ' ', U.LastName) AS Name, SUM(F.Amount) AS Total
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FROM LibraryUser U
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NATURAL JOIN Fine F
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WHERE F.PaymentStatus = 'NOT PAID'
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GROUP BY U.UserId;
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#####################################################################################
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############################ POPULATING THE ENTITY SETS #############################
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#####################################################################################
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INSERT LibraryUser (UserID, FirstName, LastName, BirthDate, LoanerNumber, UserStatus) VALUES
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(1, 'Sule', 'Altintas', '1995-08-30', '154399', 'ACTIVE'), # The jewel of the group, ermmm... I meant crown!
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(2, 'Fahad', 'Sajad', '1990-05-09', '160344', 'ACTIVE'), # Our kind second group member
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(3, 'Sebastian', 'Sbirna', '1997-05-04', '190553', 'ACTIVE'), # That's him alright
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(4, 'Kåre', 'Jørgensen', '1994-05-09', '144852', 'ACTIVE'), # Yup, our only Kåre
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(5, 'Mary', 'Little', '2013-05-07', '100115', 'ACTIVE'), # Mary Little is too little to read books suitable for a grown-up audience
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(6, 'Humphrey', 'Oldman', '1942-01-01', '997953', 'TERMINATED'), # Humphrey Oldman is so retired that he retired his library account as well :)
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(7, 'Billy', 'Bully', '2007-04-25', '203442', 'BLOCKED'); # Billy Bully didn't bring back his books :)
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INSERT Publisher (PublisherID, PublisherName, HQCountry) VALUES
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(1, 'Klim', 'Denmark'),
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(2, 'Samleren', 'Denmark'),
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(3, 'Lindhardt og Ringhof', 'Denmark'),
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(4, 'Gyldendal', 'Denmark'),
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(5, 'Textmaster', 'USA'),
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(6, 'McGraw-Hill', 'USA'),
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(7, 'Faber and Faber', 'United Kingdom');
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# For inserting Genres into the database, we used the following website as source reference:
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# https://reference.yourdictionary.com/books-literature/different-types-of-books.html
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INSERT Genre (GenreID, GenreType, GenreSubtype) VALUES
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(1, 'Fiction', 'Romance'),
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(2, 'Fiction', 'Horror'),
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(3, 'Fiction', 'Thriller'),
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(4, 'Fiction', 'Science Fiction'),
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(5, 'Non-fiction', 'Guide'),
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(6, 'Non-fiction', 'Textbook'),
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(7, 'Fiction', 'Crime'),
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(8, 'Fiction', 'Fantasy'),
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(9, 'Non-fiction', 'Prayer');
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INSERT Book (BookID, Title, ReleaseYear, PageCount, TotalQuantity, TextLanguage, PublisherID, GenreID) VALUES
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(1, 'Kafka på stranden', '2007', 505, 5, 'Danish', 1, 4),
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(2, '1Q84', '2011', 928, 4, 'Danish', 1, 1),
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(3, 'Rødby-Puttgarden', '2011', NULL, 1, 'Danish', 2, 3),
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(4, 'Maigret', '2017', 144, 10, 'Danish', 3, 7),
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(5, 'Windows 8.1 - Effektiv uden touch', '2014', 255, 1, 'Danish', 5, 5),
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(6, 'Database System Concepts, Sixth Edition', '2010', 1349, 5, 'English', 6, 6),
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(7, 'The New Tork Trilogy', '1985', 478, 2, 'English', 7, 7);
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INSERT Author (AuthorID, FirstName, LastName, Nationality) VALUES
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(1, 'Haruki', 'Murakami', 'Japan'),
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(2, 'Helle', 'Helle', 'Denmark'),
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(3, 'Ernest', 'Hemingsway', 'USA'),
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(4, 'Georges', 'Simenon', 'Belgium'),
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(5, 'Martin', 'Simon', 'Denmark'),
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(6, 'Avi', 'Silberschatz', 'USA'),
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(7, 'Henry', 'Korth', 'USA'),
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(8, 'S.', 'Sudarshan', 'USA'),
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(9, 'Paul', 'Auster', 'USA');
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INSERT Fine (FineID, Amount, UserID, IssuedDate, PaymentStatus) VALUES
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(1, 100.00, 7, '2019-09-17', 'NOT PAID'),
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(2, 100.00, 7, '2019-10-20', 'NOT PAID'),
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(3, 100.00, 7, '2019-12-14', 'NOT PAID');
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#######################################################################################
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############################ POPULATING THE RELATIONSHIPS #############################
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#######################################################################################
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INSERT Loans (UserID, BookID, LoanedDate, UntilDate, ReturnedDate, LoanedStatus) VALUES
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(5, 4, '2019-01-05', TIMESTAMPADD(DAY, 30, '2019-01-05'), '2019-01-24', 'RETURNED'),
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(5, 3, '2019-01-17', TIMESTAMPADD(DAY, 30, '2019-01-17'), '2019-02-13', 'RETURNED'),
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(7, 4, '2019-08-17', TIMESTAMPADD(DAY, 30, '2019-08-17'), NULL, 'FINED'),
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(7, 7, '2019-09-20', TIMESTAMPADD(DAY, 30, '2019-09-20'), NULL, 'FINED'),
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(7, 2, '2019-11-14', TIMESTAMPADD(DAY, 30, '2019-11-14'), NULL, 'FINED'),
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(1, 6, '2020-03-29', TIMESTAMPADD(DAY, 30, '2020-03-29'), NULL, 'LOANED'),
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(2, 6, '2020-03-29', TIMESTAMPADD(DAY, 30, '2020-03-29'), NULL, 'LOANED'),
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(3, 6, '2020-03-29', TIMESTAMPADD(DAY, 30, '2020-03-29'), NULL, 'LOANED'),
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(4, 6, '2020-03-29', TIMESTAMPADD(DAY, 30, '2020-03-29'), NULL, 'LOANED'),
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(3, 5, '2020-03-12', TIMESTAMPADD(DAY, 30, '2020-03-12'), NULL, 'LOANED');
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INSERT Reserves (UserID, BookID, ReservedDate, ReservedStatus) VALUES
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(2, 5, '2020-03-20', 'RESERVED');
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INSERT Writes (AuthorID, BookID) VALUES
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(1, 1),
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(1, 2),
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(2, 3),
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(4, 4),
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(5, 5),
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(6, 6),
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(7, 6),
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(8, 6),
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(9, 7);
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#########################################################################################
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############################ SHOWING THE RELATION INSTANCES #############################
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############################### USING SQL SELECT QUERIES ################################
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#########################################################################################
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SELECT * FROM LibraryUser;
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SELECT * FROM Author;
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SELECT * FROM Genre;
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SELECT * FROM Publisher;
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SELECT * FROM Book;
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SELECT * FROM Fine;
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SELECT * FROM Loans;
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SELECT * FROM Reserves;
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SELECT * FROM Writes;
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SELECT * FROM BookAuthorsView;
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SELECT * FROM TotalAmountDueView;

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