title: capturing both types and constraints in data integration juliana freire , rajeev rastogi , michael benedikt , wenfei fan , chee yong chan 2003. authors: nan. venue: sigmod conference. year: nan
title: integrating triggers and declarative constraints in sql database sytems roberta cochrane , hamid pirahesh , nelson mendon &#231; a mattos very large data bases 1996. authors: nan. venue: nan. year: nan