text: CREATE TABLE `users` (
  	`id` INT(11) NOT NULL AUTO_INCREMENT,
  	`user_name` VARCHAR(50) NOT NULL DEFAULT '0',
  	`password` VARCHAR(130) NOT NULL DEFAULT '0',
  	`full_name` VARCHAR(120) NOT NULL,
  	`refresh_token` VARCHAR(500) NULL DEFAULT '0',
  	`refresh_token_expiry_time` DATETIME NULL DEFAULT NULL,
  	PRIMARY KEY (`id`),
  	UNIQUE `user_name` (`user_name`)
  );