LucidDB is an

open-source Open source is source code that is made freely available for possible modification and redistribution. Products include permission to use the source code, design documents, or content of the product. The open-source model is a decentralized sof ...

database In computing, a database is an organized collection of data stored and accessed electronically. Small databases can be stored on a file system, while large databases are hosted on computer clusters or cloud storage. The design of databases sp ...

purpose-built to power data warehouses, OLAP servers and

business intelligence Business intelligence (BI) comprises the strategies and technologies used by enterprises for the data analysis and management of business information. Common functions of business intelligence technologies include reporting, online analytical pr ...

systems. According to the product website, its architecture is based on column-store, bitmap indexing, hash join/aggregation, and page-level multiversioning.

Overview

Purpose-built for

data warehousing In computing, a data warehouse (DW or DWH), also known as an enterprise data warehouse (EDW), is a system used for reporting and data analysis and is considered a core component of business intelligence. DWs are central repositories of integra ...

, OLAP, and

, LucidDB is a "columnar Business Intelligence database".Casters, Matt; Bouman, Roland; van Dongen, Jos (2010) ''Pentaho Kettle Solutions: Building Open Source ETL Solutions with Pentaho Data Integration'', John Wiley & Sons, , pp. 10, 249Bulusu, Lakshman (2012) ''Open Source Data Warehousing and Business Intelligence'', CRC Press, , p. 56 It handles ETL functionality using extensions to ANSI SQL, by using 'wrappers' around a range of data sources (databases, text files, Web services, etc.), allowing them to be queried as though they were all databases. It can also be used for enterprise information integration. LucidDB uses the Optiq query planning and execution framework. LucidDB achieves high performance by automatically identifying required indexes and creating them on the fly without the need for manual intervention. It includes a bulk loader that permits merge and update operations as well as insert. LucidDB server is licensed under

GPL The GNU General Public License (GNU GPL or simply GPL) is a series of widely used free software licenses that guarantee end users the four freedoms to run, study, share, and modify the software. The license was the first copyleft for general us ...

, while LucidDB client is licensed under LGPL.

Current status

It appears that LucidDB is no longer being maintained based on its GitHub entry. The SourceForge page has not been updated since 2010.

LucidDB has had a long run as the first pure play open source column store database. However, with no commercial sponsors and no ongoing community activity it's time to OFFICIALLY shut the doors. There will be no future code, or binary releases (this repository may at some point) of luciddb. All assets (wiki, issues, etc) will likely start coming down as well over the course of 2014. Appreciate all the effort by all those involved with LucidDB. Optiq, has given home and new life to portions of the LucidDB codebase. If you're interested in speaking SQL to NoSQL sources please the Optiq project

Connectors

*JDBC driver *ADO.NET providerADO.NET provider for LucidDB
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References

External links

*{{Official website
Eigenbase Foundation
Client-server database management systems Free database management systems Free software programmed in Java (programming language) Free software programmed in C++