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Ireland, Christopher; Bowers, David; Newton, Mike and Waugh, Kevin
(2010).
URL: http://www.iaria.org/conferences2010/DBKDA10.html
Abstract
SQL: 1999 introduced the capability to support object concepts. It is now possible to design an SQL database schema using relational and object models. Each model represents a different abstraction. We use a framework to understand the implications of this change and to explore the use of mixed abstractions in an SQL: 1999 schema. We describe two new kinds of schema. We find that current object-relational mapping strategies differ in terms of the kind of database schema they produce from the same class model.