1. Valentina服务器：
它是一个对象关系数据库和报表服务器以及快速的对象关系数据库服务器。它包括集成数据库服务器，Valentina数据库服务器和SQLite数据库服务器。它是一个功能全面，符合标准的，基于多用户访问的基于SQLite的数据库服务器。
2. VelocityDB：
它是一个.NET对象数据库，可以嵌入/分发并扩展为图形数据模型(VelocityGraph)。该数据库速度快且内存消耗低。 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。
Valentina Server和VelocityDB之间的区别：
| S.NO. | Valentina Server | VelocityDB |
|---|---|---|
| 1 | Developed by Paradigma Software and initially released on 1994. | Developed by VelocityDB Inc and initially released on 2011. |
| 2 | Current release of Valentina Server is 5.7.5 . | Current release of VelocityDB is 7.x |
| 3 | Server operating systems of Valentina Server is Linux, OS X, Windows. | Server operating systems of VelocityDB is Any that supports .NET |
| 4 | Its primary database model is Relational DBMS. | Its primary database model is Graph DBMS and Object oriented DBMS |
| 5 | Valentina Server supports .Net, C, C#, C++, Objective-C, PHP, Ruby, Visual Basic, Visual Basic.NET, programming languages. | VelocityDB supports .Net programming languages. |
| 6 | APIs and other access methods of Valentina Server is ODBC. | APIs and other access methods of VelocityDB is .Net |
| 7 | Yes, Valentina Server has a Data Schema. | Yes, VelocityDB has a Data Schema. |
| 8 | It doesn’t has Implementation language-C# . | It has Implementation language-C# . |
| 9 | Absence of Transaction concepts in Valentina Server. | Transaction concepts is ACID ( Atomicity, Consistency, Isolation, and Durability). |
| 10 | Valentina Server doesn’t hold Consistency concept. | VelocityDB has Immediate Consistency concept. |
| 11 | Yes, it holds Foreign keys. | No, it doesn’t holds Foreign keys. |
| 12 | Absence of Replication methods in Valentina Server. | Absence of Replication methods. |
| 13 | Absence of Partitioning methods in Valentina Server. | Sharding is a Partitioning methods of VelocityDB. |