MySQL中的买菜系统订单表设计指南

CREATE TABLE orders (
    order_id INT AUTO_INCREMENT PRIMARY KEY,
    user_id INT NOT NULL,
    order_time TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    order_amount DECIMAL(10, 2) NOT NULL,
    order_status ENUM('待支付', '已支付', '已发货', '已完成', '已取消') NOT NULL,
    receiver_name VARCHAR(255) NOT NULL,
    receiver_phone VARCHAR(20) NOT NULL,
    receiver_address VARCHAR(255) NOT NULL
);

CREATE TABLE order_items (
    item_id INT AUTO_INCREMENT PRIMARY KEY,
    order_id INT NOT NULL,
    product_id INT NOT NULL,
    product_name VARCHAR(255) NOT NULL,
    unit_price DECIMAL(10, 2) NOT NULL,
    quantity INT NOT NULL,
    FOREIGN KEY (order_id) REFERENCES orders(order_id)
);

CREATE TABLE payment (
    payment_id INT AUTO_INCREMENT PRIMARY KEY,
    order_id INT NOT NULL,
    payment_method VARCHAR(50) NOT NULL,
    payment_time TIMESTAMP,
    payment_amount DECIMAL(10, 2) NOT NULL,
    FOREIGN KEY (order_id) REFERENCES orders(order_id)
);