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Mondrian OLAP server

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Mondrian OLAP Server

Developer(s)	Pentaho Corporation
Stable release	3.14.0 / May 17, 2017 (2017-05-17)
Repository	github.com/pentaho/mondrian
Platform	Java
Type	OLAP Server
License	EPL
Website	mondrian.pentaho.com

Mondrian is an open source OLAP (online analytical processing) server, written in Java. It supports the MDX (multidimensional expressions) query language and the XML for Analysis and olap4j interface specifications. It reads from SQL and other data sources and aggregates data in a memory cache.

Mondrian is used for:

• High performance, interactive analysis of large or small volumes of information
• Dimensional exploration of data, for example analyzing sales by product line, by region, by time period
• Parsing the MDX language into Structured Query Language (SQL) to retrieve answers to dimensional queries
• High-speed queries through the use of aggregate tables in the RDBMS
• Advanced calculations using the calculation expressions of the MDX language

The first public release of Mondrian was on August 9, 2002.

• Business intelligence
• Comparison of OLAP servers