A logical approach to the management of object identifiers in non-conventional database management systems
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Data
2011-12-01
Autores
Valêncio, Carlos Roberto [UNESP]
Ferrizzi, André Cid [UNESP]
De Almeida, Fábio Renato [UNESP]
Carreira, Juliano Augusto [UNESP]
Tronco, Mario Luiz
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Resumo
Non-conventional database management systems are used to achieve a better performance when dealing with complex data. One fundamental concept of these systems is object identity (OID), because each object in the database has a unique identifier that is used to access and reference it in relationships to other objects. Two approaches can be used for the implementation of OIDs: physical or logical OIDs. In order to manage complex data, was proposed the Multimedia Data Manager Kernel (NuGeM) that uses a logical technique, named Indirect Mapping. This paper proposes an improvement to the technique used by NuGeM, whose original contribution is management of OIDs with a fewer number of disc accesses and less processing, thus reducing management time from the pages and eliminating the problem with exhaustion of OIDs. Also, the technique presented here can be applied to others OODBMSs. © 2011 IEEE.
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Palavras-chave
B + tree, Complex data, Direct mapping, Hashing, Indirect mapping, Mapping time, Non-conventional database, NuGeM, Object identifier, Object identity, OID, Database systems, Management, Management information systems, Managers, Mapping, Trees (mathematics)
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Parallel and Distributed Computing, Applications and Technologies, PDCAT Proceedings, p. 293-298.