eXist is an open source database management system entirely built on XML technology, also called a native XML database. Unlike most relational database management systems, eXist uses XQuery, which is a W3C Recommendation, to manipulate its data.
eXist allows software developers to persist XML data without writing extensive middleware. eXist follows and extends many W3C
XML standards such as XQuery
. eXist also supports REST
interfaces for interfacing with AJAX
-type web forms. Applications such as XForms
may save their data by using just a few lines of code.
eXist Standards and Technologies
eXist has support for the following standards and technologies
- XPath - XML Path language
- XQuery - XML Query langage
- WebDAV - Web distributed authoring and versioning
- REST - Representational state transfer (URL encoding)
- SOAP - Simple Object Access Protocol
- XACML - XML Access Control Language
- XInclude - server-side include file processing (limited support)
eXist was created in 2000 by Wolfgang Meier
who still is the lead developer as of 2008. In September 2006, it reached version 1.0 and 1.1 (new numbering scheme). Current development activities are on the 1.2.x versions.
eXist was nominated in 2006 as the best XML database of the year by InfoWorld.