Oracle Berkeley DB XML is an open source, embeddable XML database with
XQuery-based access to documents stored in containers and indexed based
on their content. Oracle Berkeley DB XML is built on top of Oracle Berkeley DB
and inherits its rich features and attributes. Like Oracle Berkeley DB, it runs
in process with the application with no need for human administration.
Oracle Berkeley DB XML adds a document parser, XML indexer and XQuery engine
on top of Oracle Berkeley DB to enable the fastest, most efficient
retrieval of data.