ALTER TABLE vn.roadmapStop CHANGE userFk editorFk int(10) unsigned DEFAULT NULL NULL, CHANGE addressFk roadmapAddressFk int(11) DEFAULT NULL NULL, DROP FOREIGN KEY expeditionTruck_FK_2; ALTER TABLE vn.roadmapStop ADD CONSTRAINT roadmapStop_roadmap_FK FOREIGN KEY (roadmapFk) REFERENCES vn.roadmap(id) ON DELETE CASCADE ON UPDATE CASCADE;