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The Computer Journal 1990 33(1):2-10; doi:10.1093/comjnl/33.1.2
© 1990 by British Computer Society
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Topological Approach for Testing Equivalence in Heterogenous Relational Databases

K. H. Baik1 * and L. L. Miller2 §

1 Department of Electrical Engineering and Computer Science, University of Wisconsin-Milwaukee, Milwaukee, Wisconsin 53201, USA, 2 Department of Computer Science, Iowa State University, Ames, Iowa 50011, USA

The concept of equivalence of heterogeneous relational database schemes is discussed. The use of a topological space defined over the attribute set is shown as a useful intermediate step in the process of establishing the equivalence of two heterogeneous database schemes. A means of selecting an optimal topology is given. The algorithms necessary to test for topological equivalence and the equivalence of two heterogeneous relational database schemes are given.

Received October 1986. revised March 1988.

* Department of Electrical Engineering and Computer Science, University of Wisconsin-Milwaukee, Milwaukee, Wisconsin 53201, USA

§ Department of Computer Science, Iowa State University, Ames, Iowa 50011, USA


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