ALTER TABLE `vn`.`ticketService` 
ADD COLUMN `ticketFk` INT(11) NOT NULL AFTER `taxClassFk`;


ALTER TABLE `vn`.`ticketService` 
ADD INDEX `fgn_ticketFk_idx` (`ticketFk` ASC);
ALTER TABLE `vn`.`ticketService` 
ADD CONSTRAINT `fgn_ticketFk`
  FOREIGN KEY (`ticketFk`)
  REFERENCES `vn2008`.`Tickets` (`Id_Ticket`)
  ON DELETE CASCADE
  ON UPDATE CASCADE;