The user is not given an effective method for drawing {HEAD ~ relationships} between the columns and {TAIL ~ keys} in the table without opening additional windows or panels 
between
The user is not given an effective method for drawing { HEAD ~ relationships } between the columns and { TAIL ~ keys } in the table without opening additional windows or panels
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH