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Database Integrity Checking

Database Integrity Checking

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Author(s): Hendrik Decker (Universidad Politécnica de Valencia, Spain)and Davide Martinenghi (Free University of Bozen/Bolzano, Italy)
Copyright: 2009
Pages: 6
Source title: Encyclopedia of Information Science and Technology, Second Edition
Source Author(s)/Editor(s): Mehdi Khosrow-Pour, D.B.A. (Information Resources Management Association, USA)
DOI: 10.4018/978-1-60566-026-4.ch153

Keywords: Information Resources Management / Information Science Reference / Library & Information Science

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Abstract

Integrity constraints (or simply “constraints”) are formal representations of invariant conditions for the semantic correctness of database records. Constraints can be expressed in declarative languages such as datalog, predicate logic, or SQL. This article highlights the historical background of integrity constraints and the essential features of their simplified incremental evaluation. It concludes with an outlook on future trends.

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Encyclopedia of Information Science and Technology, Fourth Edition

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