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start-DDL.sql

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+-- データベースの作成
+DROP DATABASE IF EXISTS `em_oop_db`;
+CREATE DATABASE `em_oop_db` CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- ユーザ権限付与
+GRANT ALL PRIVILEGES ON `em_oop_db`.* TO 'rezouser'@'localhost';
+
+-- データベースの選択
+USE `em_oop_db`;
+
+-- カテゴリテーブルの作成
+CREATE TABLE `categories` (
+    `id` INT AUTO_INCREMENT PRIMARY KEY,
+    `name` VARCHAR(100) NOT NULL,
+    `description` TEXT,
+    `created_at` TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    `updated_at` TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
+
+-- 商品テーブルの作成（カテゴリとの1対多の関係）
+CREATE TABLE `products` (
+    `id` INT AUTO_INCREMENT PRIMARY KEY,
+    `category_id` INT NOT NULL,
+    `name` VARCHAR(200) NOT NULL,
+    `description` TEXT,
+    `price` DECIMAL(10, 2) NOT NULL,
+    `stock` INT NOT NULL DEFAULT 0,
+    `created_at` TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    `updated_at` TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+    FOREIGN KEY (`category_id`) REFERENCES `categories`(`id`) ON DELETE CASCADE
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
+
+-- インデックスの作成
+CREATE INDEX `idx_category_id` ON `products`(`category_id`);
+CREATE INDEX `idx_product_name` ON `products`(`name`);