A family of Microsoft relational database management systems designed for ease of use.
Hi,
Please see Mr. Barb Way said, I copied here:
"Unfortunately, there is no way to display the Notes information in the diagram itself in Visio Pro 2007 (or earlier). There are several options on the Database > Options > Document settings dialog, but Notes is not an item which can be 'exposed'. Also, since the information is contained internally in the Database Model, it is not present in the Shapesheet for manipulation."
https://groups.google.com/forum/#!topic/microsoft.public.visio.developer.diagrams/S9ipwczcVI8
Regards,
George Zhao