eXist-db is an open source database management system entirely built on XML technology. It stores XML data according to the XML data model and features efficient, index-based XQuery processing.
eXist-db supports many (web) technology standards making it an excellent application platform:
- XQuery 1.0 / XPath 2.0
- XSLT 1.0 (using Apache Xalan) or XSLT 2.0 (optional using Saxon)
- HTTP interfaces: REST, WebDAV, SOAP, XMLRPC, Atom Publishing Protocol
- XML database specific: XMLDB, XQJ/JSR-225 (under development), XUpdate, XQuery update extensions (to be aligned with the new XQuery Update Facility 1.0
eXist-db is highly compliant with the XQuery standard (current XQTS score is 99.4%). The query engine is highly extensible and features a large collection of XQuery Function Modules.
eXist-db provides a powerful environment for the development of web applications based on XQuery and related standards.
Entire web applications can be written in XQuery, using XSLT, XHTML, CSS and Javascript (for AJAX functionality). XQuery server pages can be executed from the filesystem or stored in the database.
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