1.速度数据库：
它是 .NET 对象数据库，可以嵌入/分发并扩展到图形数据模型 (VelocityGraph) 数据库速度快且内存消耗低。 VelocityDB 是一个性能极高、易于使用、可扩展、可嵌入和可分发的对象数据库系统。
2.燕扎：
它是用于 IoT(物联网)应用程序的时间序列 DBMS，由 Yanza 开发。其服务器操作系统为Window，支持HTTP API。
VelocityDB 和 Yanza 的区别：
| S.NO. | VelocityDB | Yanza |
|---|---|---|
| 1 | Developed by VelocityDB Inc and initially released on 2011 and Current release of VelocityDB is 7.x | Developed by Yanza and initially released on 2015. |
| 2 | Server operating systems of VelocityDB is Any that supports .NET | Server operating systems of Yanza is Windows. |
| 3 | Its primary database model is Graph DBMS and Object oriented DBMS | Its primary database model is Time Series DBMS. |
| 4 | VelocityDB supports .Net programming languages. | Yanza supports any language that supports HTTP calls. |
| 5 | APIs and other access methods of VelocityDB is .Net | Yanza supports HTTP API. |
| 6 | Yes, VelocityDB has a Data Schema. | Data scheme of Yanza is schema-free. |
| 7 | It has Implementation language-C# . | It doesn’t has any Implementation language. |
| 8 | VelocityDB- Transaction concepts is ACID ( Atomicity, Consistency, Isolation, and Durability). | Its doesn’t holds transaction concepts. |
| 9 | Absence of Replication methods | Absence of Replication methods in Yanza. |
| 10 | VelocityDB has Immediate Consistency concept. | Yanza has Immediate Consistency concept. |
| 11 | Sharding is a Partitioning methods of VelocityDB. | It does not has partitioning methods. |