SDF database file on remote Azure website

Now that I have setup my website user Registration database -- using a WebMatrix's 'SDF' file,

I understand that I cannot re-publish these files (to the website), but how can I find out how
the Registration file has changed? I want to be able to see any new users that may have registered.

(I am using an Azure website and I have been told that there is no RDC capability to Azure Websites) 

Please tell me the easiest way to peak into my Registration DB.

Thanks very much,

Dave.