-- Bài 10: Chuẩn hóa toàn bộ truy vấn CRUD sang PDO Prepared Statement (prepare & execute)
CREATE DATABASE IF NOT EXISTS `labdb` CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
USE `labdb`;

CREATE TABLE IF NOT EXISTS `students` (
    `id` INT AUTO_INCREMENT PRIMARY KEY,
    `name` VARCHAR(100) NOT NULL,
    `email` VARCHAR(100) NOT NULL,
    `phone` VARCHAR(20) DEFAULT NULL,
    `birthday` DATE DEFAULT NULL,
    `created_at` TIMESTAMP DEFAULT CURRENT_TIMESTAMP
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

-- 1. SELECT theo ID:
-- SELECT id, name, email, phone, birthday FROM students WHERE id = :id;

-- 2. SEARCH theo từ khóa:
-- SELECT id, name, email, phone, birthday FROM students WHERE name LIKE :kw OR email LIKE :kw ORDER BY id DESC;

-- 3. INSERT sinh viên mới:
-- INSERT INTO students (name, email, phone, birthday) VALUES (:name, :email, :phone, :birthday);

-- 4. UPDATE sinh viên:
-- UPDATE students SET name = :name, email = :email, phone = :phone, birthday = :birthday WHERE id = :id;

-- 5. DELETE sinh viên:
-- DELETE FROM students WHERE id = :id;