According to one embodiment, system 301 may store {HEAD ~ information} in a parallel manner in {TAIL ~ the relational database} 
According to one embodiment , system 301 may store { HEAD ~ information } in a parallel manner in { TAIL ~ the relational database }
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL