Novas s stands for not only sql means not only SS s the name is inclusive for the category of comprehensive database management system that with the kind of traditional database, the relational differences are obvious . The most clear these differences do not use SMS s as the first question is the language . His example of the database, X the database is document-oriented . One of the implementation of the well-known, this type of database ,, construction, Foundation software, Apache .

big companies, the internet, including Google (BigTable), the Amazon (Dynamo ), the free software users (Project Voldemort), Facebook (Cassandra and HBase) source (MongoDB), etc., Ubuntu (CouchDB) design and setup Group database NoSQL are responsible for. A significant portion of these projects are open source and free.