Declarative Definition of Object-Oriented Multidatabase Mappings.
Jan Chomicki, Witold Litwin · 1992
We propose a language for declarative specification of mappings between different object-oriented multidatabases. The language is based on OSQL, the query language of the IRIS OODBMS. We also outline the operational semantics of our language. To appear in Distributed Object Management, M. T. Ozsu, U. Dayal and P. Valduriez, editors, Morgan Kaufmann Publishers, 1993. y Work performed while visiting HP Labs, Palo Alto, California. Address: Department of Computing and Information Sciences, 234 Nichols Hall, Kansas State University, Manhattan, KS 66506-2302. Email: [email protected]. z Work performed while visiting Santa Clara University and HP Labs, Palo Alto, California. Email: [email protected]. 1 Introduction Declarative definition of multidatabase mappings is one of the central problems of multidatabase interoperability. For object-oriented (OO) databases, one may need to map types (classes) in one database into types in another database, or functions into functions, or...