User interfaces for database tables typically shield {HEAD ~ users} from a complete table definition at {TAIL ~ one time} 
User interfaces for database tables typically shield { HEAD ~ users } from a complete table definition at { TAIL ~ one time }
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL