No not ever to different data bases that are not linked
At can only say that around the time of Y2K I was selling a Beretta 92FS to a guy who owned a security company and wanted to arm more of his guards. After we filled out the paper work at the Bel Air barracks I asked the trooper how long this usually takes and he replied " he already has 9 other guns in the system so there shouldn't be any problems". So do they keep records?, hell yes.