Abstract: A virtual databank object generated from one or more databanks, whereas said virtual databank object itself can be queried like any other databank, said method comprising: a member definition module for defining a virtual databank object as a combination of one or more member databanks forming the constituents of said virtual databank, whereas said virtual databank object itself in its behaviour resembles a member databank and can be queried by a user query like one of the member databanks forming its constituents, whereas when said virtual databank object being queried by a user query its member databanks receive said user query and return a first result set, said virtual databank object further comprising; a definition module for defining a query to be applied to said one or more member databanks which form the constituents of said virtual databank, said query when being executed returning a second result set formed by a subset of the entries of said one or more member databanks, said definition module modu