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Principles of Advanced Database Integrity Checking

Principles of Advanced Database Integrity Checking
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Author(s): Hendrik Decker (Institutod Tecnologico de Informatica, Spain)
Copyright: 2005
Pages: 6
Source title: Encyclopedia of Information Science and Technology, First Edition
Source Author(s)/Editor(s): Mehdi Khosrow-Pour, D.B.A. (Information Resources Management Association, USA)
DOI: 10.4018/978-1-59140-553-5.ch405

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Abstract

Integrity constraints (hereafter, sometimes simply ‘constraints’) are formal representations of conditions for the semantic correctness of database records. In science, constraints are usually expressed in declarative knowledge representation languages such as datalog or predicate logic. In commercial databases, they are usually expressed by distinguished SQL statements.

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