eXist DB

eXist-db (or eXist for short) is an open sourec software project for NoSQL databases built on XML technology. It is classified as both a NoSQL document-oriented database system and a native XML database (and it provides support for XML, JSON, HTML and Binary documents). Unlike most relational database management systems (RDBMS) and NoSQL databases, eXist-db provides XQuery and XSLT as its query and application programming languages. Being a complete solution, eXistdb tightly integrates with XForms for complex form development. Develop entire applications in XQuery using eXistdb's rich set of libraries. eXistdb applications are packaged as single archive files that are installed directly in the database. Deployment, upgrading to new versions and distribution become a breeze. The high-performance native XML database engine stores textual or binary data and documents without requiring a database schema. A Browser-based IDE allows managing and editing all artifacts belonging to an application. Syntax-coloring, code-completion and error-checking help to get it right. The eXist-db Dashboard is the central application launchpad and administration facility for eXist-db. eXist supports the concept of document collections. eXist organizes its documents in collections, like file systems use directories. Collections contain two types of things, files or sub-collections. Files in eXist are called "resources". Well-formed XML documents are indexed by eXist. Non XML files are stored as binary objects. eXist-db is designed to be flexible with the amount of data stored in a collection or XML file. eXist-db provides basic UNIX-style permissions on each collection to allow only some groups to have write access to a collection of documents.