title: semantics for update rule programs and implementations in a relational database management system. authors: l raschid , j lobo. venue: acm trans . database syst .. year: 1996
title: andt . g. price . accesspathselectioninarelational database management system. authors: pg selinger , mm astrahan , dd chamberlin , ra lorie. venue: proc . acm sigmod ,. year: nan