ALTER TABLE `vn`.`itemShelving` DROP FOREIGN KEY itemShelving_fk2;
ALTER TABLE `vn`.`shelvingLog` DROP FOREIGN KEY shelvingLog_FK_ibfk_1;
ALTER TABLE `vn`.`smartTag` DROP FOREIGN KEY smartTag_shelving_fk;
ALTER TABLE `vn`.`workerShelving` DROP FOREIGN KEY workerShelving_shelving_fk;

ALTER TABLE `vn`.`shelving` DROP PRIMARY KEY;
ALTER TABLE `vn`.`shelving` ADD id INT auto_increment PRIMARY KEY NULL;
ALTER TABLE `vn`.`shelving` CHANGE id id int(11) auto_increment NOT NULL FIRST;
ALTER TABLE `vn`.`shelving` ADD CONSTRAINT shelving_UN UNIQUE KEY (code);

ALTER TABLE `vn`.`itemShelving` ADD CONSTRAINT itemShelving_fk2 FOREIGN KEY (shelvingFk) REFERENCES `vn`.`shelving`(code) ON DELETE CASCADE ON UPDATE CASCADE;
ALTER TABLE `vn`.`shelvingLog` ADD CONSTRAINT shelvingLog_FK_ibfk_1 FOREIGN KEY (originFk) REFERENCES `vn`.`shelving`(code) ON DELETE CASCADE ON UPDATE CASCADE;
ALTER TABLE `vn`.`smartTag` ADD CONSTRAINT smartTag_FK FOREIGN KEY (shelvingFk) REFERENCES `vn`.`shelving`(code) ON DELETE RESTRICT ON UPDATE CASCADE;
ALTER TABLE `vn`.`workerShelving` ADD CONSTRAINT workerShelving_FK_1 FOREIGN KEY (shelvingFk) REFERENCES `vn`.`shelving`(code) ON DELETE RESTRICT ON UPDATE CASCADE;

ALTER TABLE vn.shelvingLog DROP FOREIGN KEY shelvingLog_FK_ibfk_1;
ALTER TABLE vn.shelvingLog MODIFY COLUMN originFk INT NOT NULL;
ALTER TABLE vn.shelvingLog ADD CONSTRAINT shelvingLog_FK FOREIGN KEY (originFk) REFERENCES vn.shelving(id) ON DELETE CASCADE ON UPDATE CASCADE;