accessing a data structure containing the information for each of the columns in the table and generating icons representative of the information, wherein at least one of the icons represents a primary key having values uniquely identifying a single horizontal row of the plurality of {HEAD ~ vertical columns} in {TAIL ~ the table} 
in
accessing a data structure containing the information for each of the columns in the table and generating icons representative of the information , wherein at least one of the icons represents a primary key having values uniquely identifying a single horizontal row of the plurality of { HEAD ~ vertical columns } in { TAIL ~ the table }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL