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Sincronização e Reconciliação de Dados em Base de Dados

Authors: Cawende, Orlando José Jamba;

Sincronização e Reconciliação de Dados em Base de Dados

Abstract

O presente trabalho aborda as técnicas de sincronização e reconciliação de dados usadas na construção de aplicações em ambiente desconectado. Apresenta-se uma breve resenha das principais técnicas de sincronização e reconciliação de dados existentes, bem como as ferramentas existentes nesta área. Neste trabalho são propostas duas abordagens para o problema em estudo, uma baseada em transferências linha-a-linha, orientadas por um controlador de software, designado de Sync Server, e outra baseada num mecanismo das bases de dados distribuídas, o Linked Server. Foram desenvolvidas duas aplicações para lidar com o processo de sincronização e reconciliação de dados em ambiente desconectado, empregando as abordagens propostas, onde grandes quantidades de dados são transferidas de bases de dados locais para um servidor remoto e aí são reconciliados. No contexto das aplicações em ambiente desconectado, o programador pode optar pela sincronização baseada em Linked Server para os dispositivos móveis mais apetrechados de recursos computacionais e por transferência linha-a-linha para os dispositivos mais modestos.

This work addresses the data synchronization and reconciliation techniques used in building applications in disconnected environment. A brief review of the main data synchronization and reconciliation techniques, as well as existing tools, in this area is presented. In this work, two approaches were proposed to the problem under study, one based on row-by-row transfers, controlled by a software piece, called Sync Server, and the other based on the Linked Server feature (a distributed database mechanism). Two applications were also developed to deal with the process of data synchronization and reconciliation in a disconnection environment, using the proposed approaches, where large amounts of data are transferred from local databases to a remote server and reconciled there. In the context of applications in disconnected environment, the programmer can choose Linked Server-based synchronization for powerful mobile devices, and row-by-row transfer for the modest devices.

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Keywords

Replicação, Eletrónica e Informática, Sincronização de Dados, Aplicacações Em Ambientes Móveis, Domínio/Área Científica::Engenharia e Tecnologia::Engenharia Eletrotécnica, Reconciliação de Dados

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
views
OpenAIRE UsageCountsViews provided by UsageCounts
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