获取最终形式的后视图定义。
没有东西要拿
在服务器中执行sql脚本将导致：

ERROR: Error 1064: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'CONSTRAINT `fk_employee_department`
FOREIGN KEY (`dpt_id`)
REFERENCES `r' at line 16

sql代码：

CREATE TABLE IF NOT EXISTS `rrm17b`.`employee` (
      `emp_id` INT UNSIGNED NOT NULL AUTO_INCREMENT,
      `dpt_id` INT UNSIGNED NULL,
      `emp_first` VARCHAR(20) NOT NULL,
      `emp_last` VARCHAR(20) NOT NULL,
      `emp_type` ENUM('f', 'p') NOT NULL,
      `emp_street` VARCHAR(30) NOT NULL,
      `emp_city` VARCHAR(20) NOT NULL,
      `emp_state` CHAR(2) NOT NULL,
      `emp_zip` INT UNSIGNED NOT NULL,
      `emp_phone` BIGINT UNSIGNED NOT NULL,
      `emp_email` VARCHAR(45) NOT NULL,
      `emp_notes` VARCHAR(100) NULL,
      PRIMARY KEY (`emp_id`),
      INDEX `fk_employee_department_idx` (`dpt_id` ASC) 
      CONSTRAINT `fk_employee_department`
        FOREIGN KEY (`dpt_id`)
        REFERENCES `rrm17b`.`department` (`dpt_id`)
        ON DELETE NO ACTION
        ON UPDATE NO ACTION)
    ENGINE = InnoDB

sql脚本执行完成：语句：9成功，1失败
获取最终形式的后视图定义。没有东西要拿