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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: 9
Source title: Database Technologies: Concepts, Methodologies, Tools, and Applications
Source Author(s)/Editor(s): John Erickson (University of Nebraska, Omaha, USA)
DOI: 10.4018/978-1-60566-058-5.ch016

Keywords: Data Mining and Databases / Databases / 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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