firebird is a relational database offering many ANSI SQL standard features that runs on Linux, Windows, and a variety of Unix platforms. firebird offers excellent concurrency, high performance,and powerful language support for stored procedures and triggers. It has been used in production systems, under a variety of names, since 1981.
The firebird Project 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) on 25 July, 2000.