Datanify is the largest provider of high-quality company databases with a simple pricing model. We have access to over 100 million unique companies from all around the world. Our databases include over 4,500 categories and all 195 countries, divided into voivodeships, districts, cities and much more. The enterprise-class service that used to be reserved only for multi-million dollar companies is now available to all at affordable prices and without any contracts. Choose the best database for your business and pay once!

LiteDB : LiteDB - A .NET NoSQL Document Store database in a single data file

Whether you want to build your own forum, publish the messages from a mailing list on your Website, or write your own CMS: there will be a moment that you'll want to store hierarchical data in a database. Gijs explains two practical methods to do just that.