ที่เจออันแรกครับ
select department from kskdepartment where (department_active <> "N" or department_active is null) order by department
จาก table 
CREATE TABLE `kskdepartment` (
  `depcode` char(3) NOT NULL DEFAULT '',
  `department` varchar(150) DEFAULT NULL,
  `roomno` varchar(5) DEFAULT NULL,
  `doctor_code` varchar(7) DEFAULT NULL,
  `online_time` datetime DEFAULT NULL,
  `on_desk` char(1) DEFAULT NULL,
  `spclty` char(2) DEFAULT NULL,
  `screen_visible` char(1) DEFAULT NULL,
  `doctor_visible` char(1) DEFAULT NULL,
  `registry_visible` char(1) DEFAULT NULL,
  `rx_visible` char(1) DEFAULT NULL,
  `status_open` char(1) DEFAULT NULL,
  `cashier_visible` char(1) DEFAULT NULL,
  `medication_check` char(1) DEFAULT NULL,
  `can_print_sticker` char(1) DEFAULT NULL,
  `depcode_active` char(1) DEFAULT NULL,
  `hospital_department_id` int(11) DEFAULT NULL,
  `print_sticker_check` char(1) DEFAULT NULL,
  `ot_service_pay` char(1) DEFAULT NULL,
  `hos_guid` varchar(38) DEFAULT NULL,
  `oldcode` varchar(3) DEFAULT NULL,
  `dep_confirm_code` varchar(10) DEFAULT NULL,
  `ipd_visible` char(1) DEFAULT NULL,
  PRIMARY KEY (`depcode`),
  KEY `ix_department` (`department`),
  KEY `ix_online_time` (`online_time`),
  KEY `ix_hos_guid` (`hos_guid`)
) ENGINE=InnoDB DEFAULT CHARSET=tis620
แสดงว่าโครงสร้างตารางผมไม่ถูกใช่ใหมครับ อ.