Firebird works as a relational database in order to provide standard ANSI SQL features on different platforms. It adapts both to single-user model and to company models that run databases of over 500 GB and with a large number of simultaneous clients. The multigenerational architecture, a key in this program’s success, is the enabler of hybrid OLTP and OLAP applications. Harnessing this feature led to the possibility to simultaneously make the database capable of analytical and operational data storage. The latest version integrates SQL92 support, the possibility to manage flexible transactions, take cross-database queries and use defined functions. Real time monitoring and safety granted by trusted authentication and single port use make for one of the best Open Source database software.