Sorry for this late answer, it might not even work in your situation... Nevertheless you could try one of these descriptions.
1. With MS SQL Server Management Studio follow these steps:
- MS SQL Server management Studio > File menu > "Connect Object Explorer"
- Choose your Database node and expand it. under this node you'll find a sub-node called "Database Diagrams"
- Right click on "Database Diagrams" > "New Database Diagram" > Add tables that you wish to see their columns, relationships, ...
2. With Visual Studio, follow these steps:
- Open Visual Studio
- Create a project or open an existing project (must be Visual Basic, Visual C# project, or Console Application)
- Right-click the project and choose Add -> New Item
- Under Visual C# Items select “Data”
- Select the template “ADO.NET Entity Data Model”
- Give it a name and click “Add”
- Select “Generate from database” or “Empty model”
- If “Generate from database” selected enter connection info, choose the database objects and done!
- The model is stored as a “.edmx” file.