ALTER TABLE vn.itemShelving CHANGE deep deep__ int(11) unsigned DEFAULT 1 NOT NULL; ALTER TABLE vn.itemShelving CHANGE quantity quantity__ int(11) DEFAULT 0 NOT NULL; ALTER TABLE vn.itemShelving CHANGE `level` level__ varchar(45) CHARACTER SET utf8 COLLATE utf8_unicode_ci DEFAULT '1' NOT NULL; ALTER TABLE vn.itemShelving CHANGE available available__ int(11) DEFAULT 0 NOT NULL;