CREATE DATABASE university_service;
USE university_service;
CREATE TABLE students (
student_id INT PRIMARY KEY,
name VARCHAR(100),
major VARCHAR(100),
email VARCHAR(100)
);
CREATE TABLE library (
book_id INT PRIMARY KEY,
title VARCHAR(200),
author VARCHAR(100),
student_id INT,
FOREIGN KEY (student_id) REFERENCES students(student_id)
);
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START TRANSACTION;
UPDATE students SET status = 'borrowing' WHERE student_id = 1;
UPDATE library SET status = 'borrowed' WHERE book_id = 101;
COMMIT;
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CREATE TABLE dormitory (
room_id INT PRIMARY KEY,
building_name VARCHAR(100),
student_id INT,
FOREIGN KEY (student_id) REFERENCES students(student_id)
);
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