CREATE TABLE `questions` (
  `question_id` int(5) unsigned NOT NULL AUTO_INCREMENT,
  `category_id` int(5) unsigned NOT NULL,
  `question` text NOT NULL,
  PRIMARY KEY (`question_id`),
  UNIQUE KEY `question_id` (`question_id`),
  KEY `questions_ibfk_1` (`category_id`),
  CONSTRAINT `questions_ibfk_1` FOREIGN KEY (`category_id`) REFERENCES `categories` (`category_id`)
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=latin1;

CREATE TABLE `categories` (
  `category_id` int(5) unsigned NOT NULL AUTO_INCREMENT,
  `category` varchar(64) NOT NULL,
  PRIMARY KEY (`category_id`),
  UNIQUE KEY `category_id` (`category_id`),
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=latin1;