MonetDB

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MonetDB
Developed by	MonetDB Developer Team
Latest release	4.16 / February 26, 2007
OS	Cross-platform
Genre	RDBMS
License	MonetDB License
Website	www.monetdb.nl

MonetDB is an open source high-performance database management system developed at the National Research Institute for Mathematics and Computer Science (CWI; Centrum voor Wiskunde en Informatica) in the Netherlands. It was designed to provide high performance on complex queries against large databases, e.g. combining tables with hundreds of columns and multi-million rows. As such, MonetDB can be used in application areas that because of performance issues are no-go areas for using traditional database technology in a real-time manner. MonetDB has been successfully applied in high-performance applications for data mining, OLAP, GIS, XML Query, text and multimedia retrieval.

MonetDB internal data representation is memory-based, relying on the huge memory addressing ranges of contemporary CPUs, and thus departing from traditional DBMS designs involving complex management of large data stores in limited memory.

MonetDB introduced innovations at all layers of a DBMS (see the MonetDB publications): a storage model based on vertical fragmentation, a modern CPU-tuned vectorized query execution architecture that often gives MonetDB a more than 10-fold raw speed advantage on the same algorithm over a typical interpreter-based RDBMS. MonetDB is one of the first database systems to focus its query optimization effort on exploiting CPU caches. MonetDB also features automatic and self-tuning indexes, run-time query optimization, a modular software architecture, etc. ^{[1] [2]}

The MonetDB family consists of:

• MonetDB/SQL: the relational database solution
• MonetDB/XQuery: the XML database solution
• MonetDB Server: the multi-model database server

[edit] See also

• List of relational database management systems
• Database management system
• Column-oriented DBMS

[edit] References

1. ^ #S. Manegold. An Empirical Evaluation of XQuery Processors. In Proceedings of the International Workshop on Performance and Evaluation of Data Management Systems (ExpDB), Chicago, IL, USA, June 2006.
2. ^ P. A. Boncz, T. Grust, M. van Keulen, S. Manegold, J. Rittinger, J. Teubner. MonetDB/XQuery: A Fast XQuery Processor Powered by a Relational Engine. In Proceedings of the ACM SIGMOD International Conference on Management of Data, Chicago, IL, USA, June 2006.

[edit] External links

Science related:

• Scientific papers

MonetDB related:

• Official homepage of MonetDB
• MonetDB on SourceForge
• MonetDB's DBD driver for the Perl DBI
• In-depth technical information about MonetDB
• Pathfinder, the relational XQuery compiler that provides XQuery functionality for MonetDB

XQuery/XPath related:

• XQuery 1.0: An XML Query Language
• XQuery Update Facility
• XML Path Language (XPath) 2.0

GUI tools for MonetDB/XQuery:

• DbVisualizer
• iSQL viewer
• Aqua Data Studio

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This article was originally based on material from the Free On-line Dictionary of Computing, which is licensed under the GFDL.