Versioned database storage using unitemporal relational database

摘要

Current client-server architectures are mostly based on data sharing. It means, that individual clients must have direct access to the application server, which is, however, many times, unreachable due to connection failures. Another significant problem covers performance issues because of network latency. In this case, data are managed asynchronously and merged on demand. As a result of the deep analysis, we have proposed a new architectural design pattern of distributed information system with asynchronous data actualization. During the development, we came to the conclusion of the necessity to store versioned data on a server. This paper proposes new techniques for storing versioned data in unitemporal relational database storage. At the same time, our solution is able to preserve the advantages of RDBMS, such as referential integrity and transaction processing.