Alina Stasiecka, Ewa Stemposz

Query processing in distributed relational databases

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Abstract

The report is an overview of query processing methods in distributed relational database management systems. It presents basic assumptions, concepts and methods related to the subject. The main objective is to work out the view on solutions concerning query processing, which were developed in distributed RDBMS. The aim is to analyse them in order to recognize their capabilities for query processing in distributed object-oriented DBMS. Finally, the report presents a new idea of query processing in distributed object-oriented DBMS, which is a generalization of a query optimization technique in distributed RDBMS, known as semijoins.

Key words: distributed query optimization, distributed relational databases, query processing.