Application memory is allocated to the application from {HEAD ~ a shared memory space} within {TAIL ~ the database management system} 
Application memory is allocated to the application from { HEAD ~ a shared memory space } within { TAIL ~ the database management system }
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL