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How to: Delete Unique Constraints (Visual Database Tools)

Updated: 12 December 2006

Delete a unique constraint when you want to remove the requirement for uniqueness for values entered in the column or combination of columns included in the constraint expression.

  1. In Object Explorer, right-click the table with the unique constraint, and click Design (Modify in SP1 or earlier). The table opens in Table Designer.

  2. From the Table Designer menu, click Indexes/Keys.

  3. In the Indexes/Keys dialog box, select the unique key in the Selected Primary/Unique Key and Index list.

  4. Click Delete.

    The constraint is removed from the database when you save the table.

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