Distributed Database Systems

Distributed XML Database Systems

Invention of XML as a universal standard for data representation triggered enormously wide efforts for its adaptation into almost every IT activity. Databases took one of the focusing places of the XML research. This paper investigates the development path of XML from its origins to its current place in distributed database systems. Through enumeration of features and analysis of the problems r...

Principles of Distributed Database Systems

An Authorization Framework for Database Systems

Today, data plays an essential role in all levels of human life, from personal cell phones to medical, educational, military and government agencies. In such circumstances, the rate of cyber-attacks is also increasing. According to official reports, data breaches exposed 4.1 billion records in the first half of 2019. An information system consists of several components, which one of the most im...

Concurrency Control in Distributed Geographical Database Systems

This paper discusses concurrency control in distributed geographical database systems. A geographic data server providing transactional services must be designed to handle both longand short-duration transactions. The main challenges are identified as: (1) preserving the isolation property when concurrent transactions perform read and write operations on pages; (2) ensuring that search and othe...

Scalable Transactions for Scalable Distributed Database Systems

Scalable Transactions for Scalable Distributed Database Systems