1. Aerospike：
Aerospike是经过闪存优化的内存中开源NoSQL数据库，以生产该数据库的同名公司的名称命名。它是一个键值数据存储，旨在为实时大数据应用程序提供亚毫秒级的响应时间。 Aerospike的三个主要组件是Aerospike数据库服务器，Aerospike智能客户端和Aerospike管理控制台。
2. Altibase：
Altibase是一个开源关系数据库模型系统(RDBMS)。 Altibase的第一个版本称为Spiner，该版本于2000年发布。它是企业级的内存中混合型高性能RDBMS。它由Altibase Corporation制造。它支持完整的SQL标准，功能和多版本并发控制(MVCC)，还实现了模糊和乒乓检查点。 Aerospike和Altibase之间的区别：
| S.NO. | AEROSPIKE | ALTIBASE |
|---|---|---|
| 1. | It was developed by Aerospike in 2012. | It was developed by Altibase in 1999. |
| 2. | It is a flash-optimized in-memory NoSQL database. | It is an enterprise grade, high-performance RDBMS. |
| 3. | The license of Aerospike is open-source. | The license of Altibase is open-source. |
| 4. | Server operating system for Aerospike is Linux. | Server operating systems for Altibase are AIX, HP-UX and Linux. |
| 5. | It does not support XML Format. | It also does not support XML Format. |
| 6. | It has user defined functions for Server-side scripting. | It has stored procedures and stored functions. |
| 7. | Supported partitioning method is Sharding. | Supported partitioning method is Sharding. |
| 8. | It does not support SQL query language. | It uses ANSI SQL-92 as a query language. |
| 9. | It supports only one replication method – Selectable Replication Factor. | It also supports replication methods. |
| 10. | Aerospike does not provide the concept of Referential Integrity. Hence, no Foreign Keys. | Altibase provides the concept of Referential Integrity. Hence, there exists Foreign Keys. |
| 11. | Aerospike is written in C language. | Altibase is written in C++ language. |
| 12. | It offers an API for user-defined Map/Reduce methods. | It does not offer any API for user-defined Map/Reduce methods. |
| 13. | It only supports atomic execution of operations. | It supports ACID properties. |
| 14. | It’s primary database model is Key-Value Store. | It’s primary database model is high-performance Relational DBMS. |