图书馆借阅表

 DDL

用户表 (Users)

图书表 (Books)

图书类别表 (BookCategories)

图书与类别关联表 (BookCategoryRelations)

借阅记录表 (BorrowRecords)

供应商表 (Suppliers)

采购记录表 (PurchaseRecords)

CREATE TABLE Users (user_id INT PRIMARY KEY AUTO_INCREMENT,username VARCHAR(50) NOT NULL UNIQUE,password VARCHAR(255) NOT NULL,email VARCHAR(100),phone VARCHAR(20),created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
);
CREATE TABLE Books (book_id INT PRIMARY KEY AUTO_INCREMENT,title VARCHAR(255) NOT NULL,author VARCHAR(100) NOT NULL,publisher VARCHAR(100),publication_year YEAR,ISBN VARCHAR(13) UNIQUE,stock_quantity INT NOT NULL DEFAULT 0
);
CREATE TABLE BookCategories (category_id INT PRIMARY KEY AUTO_INCREMENT,category_name VARCHAR(100) NOT NULL UNIQUE
);
CREATE TABLE `bookcategoryrelations` (`relation_id` int(11) NOT NULL AUTO_INCREMENT,`book_id` int(11) DEFAULT NULL,`category_id` int(11) DEFAULT NULL,PRIMARY KEY (`relation_id`),UNIQUE KEY `book_id` (`book_id`,`category_id`),KEY `bookcategoryrelations_ibfk_2` (`category_id`),CONSTRAINT `bookcategoryrelations_ibfk_1` FOREIGN KEY (`book_id`) REFERENCES `books` (`book_id`) ON DELETE NO ACTION ON UPDATE NO ACTION,CONSTRAINT `bookcategoryrelations_ibfk_2` FOREIGN KEY (`category_id`) REFERENCES `bookcategories` (`category_id`) ON DELETE NO ACTION ON UPDATE NO ACTION
) ENGINE=InnoDB AUTO_INCREMENT=8 DEFAULT CHARSET=utf8;
);
CREATE TABLE BorrowRecords (record_id INT PRIMARY KEY AUTO_INCREMENT,user_id INT,book_id INT,borrow_date DATE NOT NULL,return_date DATE,FOREIGN KEY (user_id) REFERENCES Users(user_id),FOREIGN KEY (book_id) REFERENCES Books(book_id)
);
CREATE TABLE Suppliers (supplier_id INT PRIMARY KEY AUTO_INCREMENT,supplier_name VARCHAR(100) NOT NULL,contact_name VARCHAR(100),phone VARCHAR(20),email VARCHAR(100)
);
CREATE TABLE `purchaserecords` (`record_id` int(11) NOT NULL AUTO_INCREMENT,`supplier_id` int(11) DEFAULT NULL,`book_id` int(11) DEFAULT NULL,`purchase_date` date NOT NULL,`quantity` int(11) NOT NULL,`price` decimal(10,2) NOT NULL,PRIMARY KEY (`record_id`),KEY `supplier_id` (`supplier_id`),KEY `book_id` (`book_id`),CONSTRAINT `purchaserecords_ibfk_1` FOREIGN KEY (`supplier_id`) REFERENCES `suppliers` (`supplier_id`),CONSTRAINT `purchaserecords_ibfk_2` FOREIGN KEY (`book_id`) REFERENCES `books` (`book_id`) ON DELETE NO ACTION ON UPDATE NO ACTION
) ENGINE=InnoDB DEFAULT CHARSET=latin1;

DML

INSERT INTO Users (username, password, email, phone)
VALUES ('user1', 'pass1', '[e-mail]', '1234567890');INSERT INTO Users (username, password, email, phone)
VALUES ('user2', 'pass2', '[e-mail]', '0987654321');INSERT INTO Users (username, password, email, phone)
VALUES ('user3', 'pass3', NULL, '1112223333');INSERT INTO Users (username, password, email, phone)
VALUES ('user4', 'pass4', '[e-mail]', NULL);INSERT INTO Users (username, password, email, phone)
VALUES ('user5', 'pass5', '[e-mail]', '5556667777');INSERT INTO Users (username, password, email, phone)
VALUES ('user6', 'pass6', NULL, '9998887777');INSERT INTO Users (username, password, email, phone)
VALUES ('user7', 'pass7', '[e-mail]', '7778889999');INSERT INTO BookCategoryRelations (book_id, category_id)
VALUES (1, 1);INSERT INTO BookCategoryRelations (book_id, category_id)
VALUES (2, 2);INSERT INTO BookCategoryRelations (book_id, category_id)
VALUES (3, 3);INSERT INTO BookCategoryRelations (book_id, category_id)
VALUES (4, 4);INSERT INTO BookCategoryRelations (book_id, category_id)
VALUES (5, 5);INSERT INTO BookCategoryRelations (book_id, category_id)
VALUES (6, 6);INSERT INTO BookCategoryRelations (book_id, category_id)
VALUES (7, 7);INSERT INTO Books (title, author, publisher, publication_year, ISBN, stock_quantity)
VALUES ('Book 1', 'Author 1', 'Publisher 1', 2020, '1234567890123', 10);INSERT INTO Books (title, author, publisher, publication_year, ISBN, stock_quantity)
VALUES ('Book 2', 'Author 2', 'Publisher 2', 2019, '2345678901234', 15);INSERT INTO Books (title, author, publisher, publication_year, ISBN, stock_quantity)
VALUES ('Book 3', 'Author 3', 'Publisher 3', 2021, '3456789012345', 20);INSERT INTO Books (title, author, publisher, publication_year, ISBN, stock_quantity)
VALUES ('Book 4', 'Author 4', 'Publisher 4', 2018, '4567890123456', 25);INSERT INTO Books (title, author, publisher, publication_year, ISBN, stock_quantity)
VALUES ('Book 5', 'Author 5', 'Publisher 5', 2022, '5678901234567', 30);INSERT INTO Books (title, author, publisher, publication_year, ISBN, stock_quantity)
VALUES ('Book 6', 'Author 6', 'Publisher 6', 2023, '6789012345678', 35);INSERT INTO Books (title, author, publisher, publication_year, ISBN, stock_quantity)
VALUES ('Book 7', 'Author 7', 'Publisher 7', 2024, '7890123456789', 40);INSERT INTO BookCategories (category_name)
VALUES ('Category 1');INSERT INTO BookCategories (category_name)
VALUES ('Category 2');INSERT INTO BookCategories (category_name)
VALUES ('Category 3');INSERT INTO BookCategories (category_name)
VALUES ('Category 4');INSERT INTO BookCategories (category_name)
VALUES ('Category 5');INSERT INTO BookCategories (category_name)
VALUES ('Category 6');INSERT INTO BookCategories (category_name)
VALUES ('Category 7');INSERT INTO BorrowRecords (user_id, book_id, borrow_date, return_date)
VALUES (1, 1, '2024-07-01', '2024-07-15');INSERT INTO BorrowRecords (user_id, book_id, borrow_date, return_date)
VALUES (2, 2, '2024-07-05', '2024-07-20');INSERT INTO BorrowRecords (user_id, book_id, borrow_date, return_date)
VALUES (3, 3, '2024-07-10', NULL);INSERT INTO BorrowRecords (user_id, book_id, borrow_date, return_date)
VALUES (4, 4, '2024-07-15', NULL);INSERT INTO BorrowRecords (user_id, book_id, borrow_date, return_date)
VALUES (5, 5, '2024-07-20', NULL);INSERT INTO BorrowRecords (user_id, book_id, borrow_date, return_date)
VALUES (6, 6, '2024-07-25', NULL);INSERT INTO BorrowRecords (user_id, book_id, borrow_date, return_date)
VALUES (7, 7, '2024-07-30', NULL);INSERT INTO Suppliers (supplier_name, contact_name, phone, email)
VALUES ('Supplier 1', 'Contact 1', '1234567890', '[e-mail]');INSERT INTO Suppliers (supplier_name, contact_name, phone, email)
VALUES ('Supplier 2', 'Contact 2', '0987654321', '[e-mail]');INSERT INTO Suppliers (supplier_name, contact_name, phone, email)
VALUES ('Supplier 3', 'Contact 3', '1112223333', '[e-mail]');INSERT INTO Suppliers (supplier_name, contact_name, phone, email)
VALUES ('Supplier 4', 'Contact 4', '4445556666', '[e-mail]');INSERT INTO Suppliers (supplier_name, contact_name, phone, email)
VALUES ('Supplier 5', 'Contact 5', '7778889999', '[e-mail]');INSERT INTO Suppliers (supplier_name, contact_name, phone, email)
VALUES ('Supplier 6', 'Contact 6', '0001112222', '[e-mail]');INSERT INTO Suppliers (supplier_name, contact_name, phone, email)
VALUES ('Supplier 7', 'Contact 7', '3334445555', '[e-mail]');INSERT INTO PurchaseRecords (supplier_id, book_id, purchase_date, quantity, price)
VALUES (1, 1, '2024-06-01', 50, 20.00);INSERT INTO PurchaseRecords (supplier_id, book_id, purchase_date, quantity, price)
VALUES (2, 2, '2024-06-05', 40, 18.00);INSERT INTO PurchaseRecords (supplier_id, book_id, purchase_date, quantity, price)
VALUES (3, 3, '2024-06-10', 30, 25.00);INSERT INTO PurchaseRecords (supplier_id, book_id, purchase_date, quantity, price)
VALUES (4, 4, '2024-06-15', 20, 30.00);INSERT INTO PurchaseRecords (supplier_id, book_id, purchase_date, quantity, price)
VALUES (5, 5, '2024-06-20', 15, 22.00);INSERT INTO PurchaseRecords (supplier_id, book_id, purchase_date, quantity, price)
VALUES (6, 6, '2024-06-25', 10, 15.00);INSERT INTO PurchaseRecords (supplier_id, book_id, purchase_date, quantity, price)
VALUES (7, 7, '2024-06-30', 5, 10.00);