1. Transbase：
它是资源优化，高性能，通用的RDBMS，由慕尼黑Transaction Software GmbH开发和维护。它是一个关系数据库管理系统，支持SQL标准的所有重要功能。 Transbase的数据库可以通过附加功能进行扩展，而自定义数据类型还可以通过动态多线程技术来并行执行查询。
2. VelocityDB：
它是.NET对象数据库，可以嵌入/分发并扩展为图形数据模型(VelocityGraph)。数据库速度快，内存消耗低。 VelocityDB是一个极高性能，易于使用，可伸缩，可嵌入和可分发的对象数据库系统。
Transbase和VelocityDB之间的区别：
| Transbase | VelocityDB |
|---|---|
| Developed by Transaction Software GmbH and initially released on 1987. | Developed by VelocityDB Inc and initially released on 2011. |
| FreeBSD, Linux, macOS, Solaris, Windows, are the server, operating systems of Transbase. | .NET is server operating systems of VelocityDB. |
| Primary database model is Relational DBMS. | Primary database model is Graph DBMS and Object oriented DBMS. |
| Supports C, C#, C++, Java, JavaScript, Kotlin, Objective-C, PHP, Python are programming languages. | .Net is supporting programming languages. |
| ADO.NET, JDBC, ODBC, Proprietary native API are the APIs and other access methods of Transbase. | APIs and other access methods of VelocityDB is .Net |
| Implementation language of Transbase is C and C++ . | Implementation language of VelocityDB is C#. |
| Replication methods of Transbase is Master-slave replication. | Absence of Replication methods in VelocityDB. |
| Absence of partitioning method in Transbase. | Sharding partitioning method present in VelocityDB. |
| It holds Foreign keys | It doesn’t hold Foreign keys. |
| It supports SQl and server-side scripts. | It doesn’t support SQl and server-side scripts. |