Qizx, a fast XML database engine fully supporting XQuery

Axyana Software develops Qizx, an embeddable XML Database engine of high performance and flexibility.

Qizx is marketed by XMLmind.

Main features: [more here]

• Designed for query speed,
• Automatic indexing: does not need to define indexes to reach best query speed,
• Intelligent compilation: write your queries in standard XQuery, no need to use proprietary functions.
• Works with any well-formed XML document,
• Fully supports XQuery and its optional dialects: XQuery Update, XQuery Full-text, XQuery Scripting,
• Handles Terabyte-sized databases and hundreds of millions of XML documents, as well as huge documents (several Gigabytes).
• Embeddable engine, can also be used as an application server or a back-end server.
• Very extensible.