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Master's Dissertation
DOI
https://doi.org/10.11606/D.3.2007.tde-01042009-143157
Document
Author
Full name
Rodrigo Katsumoto Sakai
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2007
Supervisor
Committee
Souza, Solange Nice Alves de (President)
Campos, Edit Grassiani Lino de
Pavón Mendoza, Judith Virginia
Title in Portuguese
Extensão de um SGBD para incluir o gerenciamento da informação temporal.
Keywords in Portuguese
Banco de dados temporais
Abstract in Portuguese
O fator temporal é uma variável natural da maioria dos sistemas de informação, pois no mundo real os eventos ocorrem de maneira dinâmica, modicando continuamente os valores dos seus objetos no decorrer do tempo. Muitos desses sistemas precisam registrar essa modicação e atribuir os instantes de tempo em que cada informação foi válida no sistema. Este trabalho reúne as características relacionadas aos Bancos de Dados Temporais e Bancos de Dados Objeto-Relacionais. O objetivo primordial é propor uma forma de implementar alguns aspectos temporais, desenvolvendo um módulo que faça parte das características e funcionalidades internas de um SGBD. O módulo temporal contempla principalmente a parte de restrições de integridade temporal que é utilizada para manter a consistência da informação temporal armazenada. Para isso, é proposto um novo tipo de dado que melhor representa as marcas temporais dos objetos. Uma parte importante para a implementação desse projeto é a utilização de um SGBD objeto-relacional que possui algumas características orientadas a objetos que permitem a extensão de seus recursos, tornando-o capaz de gerenciar alguns aspectos temporais. O módulo temporal desenvolvido torna esses aspectos temporais transparentes para o usuário. Por conseqüência, esses usuários são capazes de utilizar os recursos temporais com maior naturalidade.
Title in English
Extension of a DBMS to include the management of temporal information.
Keywords in English
Temporal databases
Temporal datatype
Temporal integrity constraints
Temporal module
Abstract in English
The temporal factor is a natural variable of the majority of the information systems, therefore in the real world the events occur in dynamic way, modifying continuously the values of its objects in elapsing of the time. Many of these systems need to register this modication and to attribute the instants of time where each information was valid in the system. This work congregates the characteristics related to the Temporal Databases and Object-Relational Databases. The primordial objective is to consider a form to implement some temporal aspects, developing a module that is part of the characteristics and internal functionalities of a DBMS. The temporal module mainly contemplates the part of restrictions of temporal integrity that is used to keep the consistency of the stored temporal information. For this, a new data type is proposed that better represent the objects timestamps. An important part for the implementation of this project is the use of a object-relational DBMS that has some object-oriented characteristics that allow the extension of its resources, becoming capable to manage some temporal aspects. The developed temporal module becomes these transparent temporal aspects for the user. For consequence, these users are capable to use the temporal resources more naturally.
 
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dissertacao.pdf (1.83 Mbytes)
SAKAI_R_K.doc (46.50 Kbytes)
Publishing Date
2009-04-09
 
WARNING: The material described below relates to works resulting from this thesis or dissertation. The contents of these works are the author's responsibility.
  • SAKAI, Rodrigo K., and SOUZA, Solange N. A. Temporal Object-Oriented Databases Applied to Petroleum Distribution. In International Business Information Management Conference (8th IBIMA), Dublin, 2007. International Business Information Management Conference (8th IBIMA)., 2007.
All rights of the thesis/dissertation are from the authors
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