UPDATE `omc_db`.`measure_threshold` SET `alarm_id`='RJHXEMSPM10200';
ALTER TABLE `omc_db`.`measure_threshold` 
MODIFY COLUMN `alarm_id` varchar(16) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT 'RJHXEMSPM10200' AFTER `orig_severity`;
ALTER TABLE `omc_db`.`measure_threshold` 
ADD COLUMN `alarm_flag` bool DEFAULT false AFTER `alarm_id`;