xml database engine- xmldb

The XMLDB is a RAD data-framework component that provides a smart interface to the application's data. The XMLDB is a multi-user, inherently persistent hierarchical database-management-system that hides from the application all the XML cryptography, and the hassles of flat databases on heterogeneous systems. The XMLDB offers the following services:

Multi-user.
Very easy to program.
Best XML mapping with branch for attributes per node.
Capability to store 2 billion nodes and 2 billion attributes.
Create XML Databases.
Create, delete, and rename Tree-tables.
Import content from XML strings.
Export content to XML strings.
Add/Edit/Remove data with no code effort with WYSWYG Editor.
Access Tree-table’s content by Handle, by XPath, by SQL Query, and by Link.
Fast Navigation of Tree-table’s content using indexed-seeks.
Associate data with meta-data.
Seek and traverse data according to SQL queries.
Unlimited number of simultaneous queries. Query cursors preserved by handle.
Generate filtered XML without disturbing your data.
Fully programmable and expandable.