Online Documentation for SQL Manager for SQL server
Managing UDT Primary/Unique Keys
The Primary/Unique Keys tab is provided for viewing and editing UDT primary/unique keys. This tab is only available for Table Data Type.
Double-click a constraint to edit it using the Table Type Constraint dialog.
Right-click a constraint to display the context menu allowing you to create new, edit, or drop the selected constraint.
The Columns list provides the following attributes of each constraint of the UDT:
Primary Key
Unique Key
Columns
Clustered
Ignore Duplicates