CREATE TABLE `survey_responses` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `client_survey_id` int(11) NOT NULL,
  `question_id` int(11) NOT NULL,
  `response` text,
  `created_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (`id`),
  KEY `client_survey_id` (`client_survey_id`),
  KEY `question_id` (`question_id`),
  CONSTRAINT `survey_responses_ibfk_1` FOREIGN KEY (`client_survey_id`) REFERENCES `client_surveys` (`id`) ON DELETE CASCADE,
  CONSTRAINT `survey_responses_ibfk_2` FOREIGN KEY (`question_id`) REFERENCES `survey_questions` (`id`) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;