Fundamentals of database systems
Fundamentals of database systems
Nomenclator descriptive query optimization for large X.500 environments
SIGCOMM '91 Proceedings of the conference on Communications architecture & protocols
Storing MDBS catalog information in an X.500 directory service
CASCON '94 Proceedings of the 1994 conference of the Centre for Advanced Studies on Collaborative research
Design and implementation of a trader-based resource management system
CASCON '94 Proceedings of the 1994 conference of the Centre for Advanced Studies on Collaborative research
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The X.500 standard specifies a distributed directory service designed to store information about people and objects associated with computer networks. Its API is geared toward retrieving information based on this application domain. Recently, a number of projects have used the directory in non-traditional ways. Such applications, however, are constrained by the X.500 information model and the limited functionality of its API. We describe a prototype system that allows users to view the information in a directory as relations, and to query the view using SQL. An analysis of the performance of the system is presented and possible optimizations are discussed.