Seeing real time data in visio viewer

[robert]

I have developed a screen in Visio that connects the
diagrams custom properties with our asset database
(oracle). I have to manually refresh the data on the page,
but I'd rather publish the diagrams so that when someone
opens the diagram with the viewer, they will see any data
changes from the asset database.

Is it possible to see real time data using visio viewer?

I'm using 2003 version..

rob