What is Firebird?
Firebird is an open source relational database offering many ANSI SQL-99 features that runs on Linux, Windows, and a variety of Unix platforms. Firebird offers excellent concurrency, high performance, powerful language support for stored procedures and triggers. It has been used in many production systems within a large number of commercial companies since 1981.
Firebird is a commercially independent project of C and C++ programmers, technical advisors and supporters developing and enhancing a multi-platform relational database management system based on the source code released by Inprise Corp (now known as Borland Software Corp) under the InterBase Public License V.1.0 on 25 July, 2000.