VistaDB is an embedded database engine for Visual Studio .Net developers (C# / VB.NET) with TSQL Procs, CLR procs, XCopy deployment, and much more.
Cost / License
- Paid
- Proprietary
Platforms
- Windows




FerretDB is described as '(formerly MangoDB) is an open-source proxy, which converts MongoDB wire protocol queries to SQL, and uses PostgreSQL as a database engine' and is an app in the development category. There are more than 100 alternatives to FerretDB for a variety of platforms, including Linux, Windows, Mac, Self-Hosted and Web-based apps. The best FerretDB alternative is SQLite, which is both free and Open Source. Other great apps like FerretDB are PostgreSQL, MySQL Community Edition, MariaDB and MongoDB.
VistaDB is an embedded database engine for Visual Studio .Net developers (C# / VB.NET) with TSQL Procs, CLR procs, XCopy deployment, and much more.




Filesystem-backed document DBMS in Rust where every record is a Git-versionable JSON file with automatic cryptographic integrity for compliance-critical systems.

MaxDB is an ANSI SQL-92 (entry level) compliant relational database management system (RDBMS) from SAP AG, which was delivered also by MySQL AB from 2003 to 2007. MaxDB is targeted for large SAP environments e.g.
FrontBase was created to fill the need for a robust and scalable relational database server that was Internet enabled, had no downtime, and required zero administration. FrontBases speed, wide range of features, and flexible structure can give you the competitive edge.
Amazon DocumentDB (with MongoDB compatibility) is a fast, reliable, and fully managed database service that makes it easy for you to set up, operate, and scale MongoDB-compatible databases.