Manage Relations
The Manage Relations dialog box in SQL Server Management Studio, SQL Server Management Studio Express, and Server Explorer in Visual Studio enables you to view and delete the primary key and foreign key relations in SQL Server Compact 3.5.
Options
Relation Name
Select the relation name that you want to view or delete.
Columns in Relation
Displays the list of the columns that have a primary key and a foreign key relationship.
Delete Relation
Click Delete to remove the relation.