To drop a foreign key, use the Alter Table dialog box. Instructions for how to drop a foreign key relationship are provided below.
To drop a foreign key relationship:
SQLWizard displays a - sign preceding the foreign key name to indicate it will be dropped when you exit the Alter Table dialog box.
If you realize you want to keep a foreign key (relationship) before exiting the Alter Table dialog box, double click the name of the foreign key and display the Drop Relationship dialog box. Click the Undo button. The - sign will be removed, and the foreign key will remain intact.