when user last accessed demnatra

Hi All,

Is there any way in Demantra by which we can determine , when the user last accessed the Demantra application.

I could see that when login to   collaborator workbench we could see last update date/refresh date .

As we need to identify for other users , is there any back end table that stores this information.

Any pointers  on this is appreciated.

Thanks,

Aiswarya