Base de datos comercio - ¿Esta bien?

[epcode]

Iniciado por Pablus00

las imagenes no se ven...

Código:

CREATE TABLE category (
  category_id INT(3) UNSIGNED NOT NULL AUTO_INCREMENT,
  category_desc VARCHAR(50) DEFAULT NULL,
  PRIMARY KEY (category_id)
) ENGINE=InnoDB;

CREATE TABLE items (
  item_id INT(11) UNSIGNED NOT NULL AUTO_INCREMENT,
  i_name VARCHAR(80) NOT NULL DEFAULT '',
  i_price FLOAT(5,2) NOT NULL DEFAULT '0',
  i_stock INT(11) NOT NULL DEFAULT '0',
  i_img BLOB,
  i_date DATETIME NOT NULL,
  i_description TEXT,
  i_category INT(3) NOT NULL,
  PRIMARY KEY (item_id)
) ENGINE=InnoDB;

CREATE TABLE users (
  user_id INT(11) UNSIGNED NOT NULL AUTO_INCREMENT,
  u_name VARCHAR(35) DEFAULT NULL,
  u_sname VARCHAR(35) DEFAULT NULL,
  u_address VARCHAR(50) DEFAULT NULL,
  u_city VARCHAR(50) DEFAULT NULL,
  u_state VARCHAR(50) DEFAULT NULL,
  u_country VARCHAR(50) DEFAULT NULL,
  u_cp INT(6) UNSIGNED DEFAULT '0',
  u_phone INT(11) DEFAULT '0',
  u_dni INT(11) UNSIGNED DEFAULT '0',
  u_email VARCHAR(60) DEFAULT NULL,
  u_username VARCHAR(32) DEFAULT NULL,
  u_password VARCHAR(32) DEFAULT NULL,
  u_img BLOB,
  u_online ENUM('on', 'off') DEFAULT 'off',
  u_date DATETIME,
  u_range ENUM('client', 'seller', 'admin') DEFAULT 'client',
  PRIMARY KEY (user_id)
) ENGINE=InnoDB;

CREATE TABLE orders (
  order_id INT(11) UNSIGNED NOT NULL AUTO_INCREMENT,
  client_id INT(11) UNSIGNED NOT NULL,
  seller_id INT(11) UNSIGNED NOT NULL,
  item_id INT(11) UNSIGNED NOT NULL,
  o_date DATETIME,
  o_amount FLOAT(5,2) NOT NULL DEFAULT '0',
  o_status ENUM('confirmed', 'unconfirmed') DEFAULT 'unconfirmed',
  PRIMARY KEY (order_id),
  KEY client_id(client_id),
  KEY seller_id(seller_id),
  FOREIGN KEY (client_id) REFERENCES users(user_id),
  FOREIGN KEY (seller_id) REFERENCES users(user_id)
) ENGINE=InnoDB;

CREATE TABLE questions (
  question_id INT(11) UNSIGNED NOT NULL AUTO_INCREMENT,
  q_question TEXT,
  q_client INT(11) UNSIGNED NOT NULL,
  q_seller INT(11) UNSIGNED NOT NULL,
  q_date DATETIME,
  PRIMARY KEY (question_id),
  KEY q_client (q_client),
  KEY q_seller (q_seller),
  FOREIGN KEY (q_client) REFERENCES users(user_id),
  FOREIGN KEY (q_seller) REFERENCES users(user_id)
) ENGINE=InnoDB;

Mil disculpas; ... ahi esta como las hice en código