USE `vn`;

ALTER TABLE `vn`.`payMethod` 
ADD COLUMN `code` VARCHAR(50) CHARACTER SET 'utf8' COLLATE 'utf8_general_ci' NULL AFTER `id`;

UPDATE `vn`.`payMethod` SET `code` = 'bankDraft' WHERE (`id` = '4');
UPDATE `vn`.`payMethod` SET `code` = 'card' WHERE (`id` = '5');