How to: Delete Foreign Key Relationships
Delete a foreign key constraint when you want to remove the requirement to enforce referential integrity.
Note
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To delete a foreign key constraint
In Server Explorer, select the table with the constraint, and from the Database menu click Open Table Definition.
The table opens in Table Designer.
From the Table Designer menu, click Relationships.
In the Foreign Key Relationships dialog box, select the relationship in the Selected Relationship list.
Click the Delete button.
See Also
Concepts
Foreign Keys (Visual Database Tools)