-- Place your SQL code here ALTER TABLE vn.deviceProductionUser DROP FOREIGN KEY deviceProductionUser_FK; ALTER TABLE vn.deviceProductionUser DROP FOREIGN KEY deviceProductionUser_PK; ALTER TABLE vn.deviceProductionUser ADD CONSTRAINT deviceProductionUser_FK FOREIGN KEY (deviceProductionFk) REFERENCES vn.deviceProduction(id)ON DELETE CASCADE ON UPDATE CASCADE; ALTER TABLE vn.deviceProductionUser ADD CONSTRAINT deviceProductionUser_PK FOREIGN KEY (userFk) REFERENCES account.`user`(id) ON DELETE CASCADE ON UPDATE CASCADE; ALTER TABLE vn.deviceProductionUser ADD CONSTRAINT deviceProductionUser_CK PRIMARY KEY (deviceProductionFk); ALTER TABLE vn.deviceProductionUser ADD CONSTRAINT deviceProductionUser_UN UNIQUE KEY (userFk); ALTER TABLE vn.deviceProductionUser ADD created TIMESTAMP NULL; ALTER TABLE vn.deviceProductionUser MODIFY COLUMN created timestamp DEFAULT current_timestamp() NULL;