A logical approach to the management of object identifiers in non-conventional database management systems

• Autor(a) principal: Valêncio, Carlos Roberto [UNESP]
• Data de Publicação: 2011
• Outros Autores: Ferrizzi, André Cid [UNESP], De Almeida, Fábio Renato [UNESP], Carreira, Juliano Augusto [UNESP], Tronco, Mario Luiz
• Tipo de documento: Artigo de conferência
• Idioma: eng
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://dx.doi.org/10.1109/PDCAT.2011.6; http://hdl.handle.net/11449/72862
• topic: 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)

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.