Firebird RDBMS offers ANSI SQL features & runs on Linux, Windows & several Unix platforms. Features excellent concurrency & performance & powerful stored procedure & trigger language.
More information and downloads at https://firebirdsql.org/, issue tracker is https://github.com/FirebirdSQL/firebird/issues
Firebird database .NET Provider Installer for Visual Studio
This nice-looking (GUI-based) utility installs the .NET Provider for Firebird database management system, including DDEX Provider (integration with Microsoft Visual Studio 2010).
Requirements to run this installer:
(1) Windows operatingsystem. Not applicable to *NIX/Mono: Microsoft Visual Studio requires Windows OS.
(2) Visual Studio 2010.