I've got a region table by which I store master region data like Europe, America. etc. Now, in the area drop lower within the UI I wish to add a choice to choose all regions. Must i give a new record "ALL" within the region table or must i add the "ALL" option only within the UI? Also within the JSP (UI) i retrieve the location from DB (EJB) and show their email list within the JSP page.

Add it within the UI, otherwise you are breaking your computer data model.