A method 1, wherein the database is a relational database having {HEAD ~ a number} of {TAIL ~ database fields}, each having a respective type 
A method 1 , wherein the database is a relational database having { HEAD ~ a number } of { TAIL ~ database fields } , each having a respective type
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 OTH OTH OTH OTH OTH OTH