The retrieval of data from {HEAD ~ a database} in {TAIL ~ a computerized database management system} is optimized through the use of a plurality of join indexed 
in
The retrieval of data from { HEAD ~ a database } in { TAIL ~ a computerized database management system } is optimized through the use of a plurality of join indexed
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH