Encyclopedia of Database Systems

Living Edition
| Editors: Ling Liu, M. Tamer Özsu

Rank-Join Indices

Living reference work entry
DOI: https://doi.org/10.1007/978-1-4899-7993-3_80681-1

Synonyms

Definition

Let R1 be a relation, over attributes A11, , An1. We say that R1 is a ranked relation, if there is a designated rank attribute Ar1, with domain a subset of \(\mathbb{R}^{+}\)

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Copyright information

© Springer Science+Business Media LLC 2016

Authors and Affiliations

  1. 1.Paris Descartes UniversityDescartesFrance
  2. 2.Department of Computer Science and EngineeringUniversity of IoanninaIoanninaGreece