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Issue No. 02 - March/April (1988 vol. 5)
ISSN: 0740-7459
pp: 80-85
<p>The universal-relation model is introduced, and its fundamental ideas are outlined. This model keeps access-path independence by removing the need for logical navigation among relations. One benefit is a simple yet powerful query-language interface. Two universal-relation database-management systems are discussed that provide good examples of the model: System/U, developed at Stanford University, and FIDL, developed at International Computers Ltd. in Britain.</p>
relational databases; information retrieval; query processing; universal-relation data model; logical independence; access-path independence; logical navigation; query-language interface; database-management systems; System/U; Stanford University; FIDL; International Computers; information retrieval; query languages; relational databases

M. Y. Vardi, "The Universal-Relation Data Model for Logical Independence," in IEEE Software, vol. 5, no. , pp. 80-85, 1988.
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