How to access Std. Portal database table (WCR_USERSTAT)..?

Hi Experts,

How to access the Std portal databse tables like WCR_USERSTAT table using webdynpro java, PortalComponent application.

I have come across the SAP Code gallery for the same:

http://wiki.scn.sap.com/wiki/display/Snippets/Direct+Access+Databse+Tables

But in the code need to lookup portal DataSource by alias name and here given Std alias name is not working.....

Like to know any other option to access the Std. SAP Portal databse tables.

Regards,

Hanif