How to: Rename a Database Diagram
You can rename a database diagram in Server Explorer if you have ALTER permission on the database.
Note
Your computer might show different names or locations for some of the Visual Studio user interface elements in the following instructions. The Visual Studio edition that you have and the settings that you use determine these elements. For more information, see Customizing Development Settings in Visual Studio.
To rename a database diagram
In Server Explorer, expand the Database Diagram folder.
Right-click the database diagram that you want to rename.
Choose Rename on the shortcut menu.
An edit box is opened around the diagram name in Server Explorer.
Enter the new name for the database diagram, and press ENTER.
The database diagram appears in Server Explorer with the new name.