CREATE TABLE `survey_questions` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `survey_id` int(11) NOT NULL,
  `question` text NOT NULL,
  `type` enum('text','textarea','select','radio','checkbox') NOT NULL,
  `created_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (`id`),
  KEY `survey_id` (`survey_id`),
  CONSTRAINT `survey_questions_ibfk_1` FOREIGN KEY (`survey_id`) REFERENCES `surveys` (`id`) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;