В тригере update - MySQL

CREATE TRIGGER " . $triggerName . "
                AFTER
                    INSERT
                        ON " . $triggerTable . "
                FOR EACH ROW
                  BEGIN
                    IF(NEW.SENDER_STATUS = 0) THEN 
                        INSERT INTO ED_TRIGGER_MSG (GLOBALID, SENT, VIEWED, DELETED)
                           VALUES (NEW.SENDER_GLOBALID, 1, 0, 0) 
                                ON DUPLICATE KEY UPDATE SENT = SENT + 1;   
                    END IF;
                  END;