A Fast Method for Ensuring the Consistency of Integrity Constraints

Autor:	Barry G. T. Lowden, Jerome Robinson
Rok vydání:	1999
Předmět:	Set (abstract data type) Constraint (information theory) Modal Computer science Distributed computing Logical programming Data integrity Information system Data mining computer.software_genre computer
Zdroj:	Lecture Notes in Computer Science ISBN: 9783540664482 DEXA
DOI:	10.1007/3-540-48309-8_38
Popis:	The last few years have seen an increasing trend to use database technology in more innovative and diverse application domains which places even greater demands on DBMS for accuracy of information. The provision of correct and reliable data is therefore of vital importance and systems for integrity enforcement crucial. At the same time, as systems become more sophisticated, the sheer number and complexity of integrity constraints, associated with applications, is steadily increasing together with the rate at which changes are made to the constraint base itself. In this paper we examine the problem of constraint maintenance and propose a fast method for validating additional and modified constraints. The method is based on the construction of Modal Records to determine if a newly defined constraint is consistent with an existing constraint set.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::701e94f7a0604ee22507462c6306dd99 https://doi.org/10.1007/3-540-48309-8_38 Zobrazit plný text záznamu