1. Adabas：
Adabas代表可调整的数据库系统。它是由Software AG开发的，可以在IBM大型机上运行。它于1971年推出。它是用于大型机和Linux / Unix / Windows环境的OLTP-DBMS。 Adabas是一种企业数据库管理系统(DBMS)，旨在实现可靠性，高性能，可伸缩性和较低的总体拥有成本。
2. Aerospike：
Aerospike是经过闪存优化的内存中开源NoSQL数据库，并且是生产该数据库的同名公司的名称。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。 Adabas和Aerospike之间的区别：
| S.No. | ADABAS | AEROSPIKE |
|---|---|---|
| 1. | It was developed by Software AG in 1971. | It was developed by Aerospike in 2012. |
| 2. | It is an OLTP – DBMS for mainframes and Linux/Unix/Windows environments. | It is a flash-optimized in-memory NoSQL database. |
| 3. | Adabas is written in natural language. | Aerospike is written in C language. |
| 4. | Server operating systems for Adabas are BS2000, Linux, Unix, Windows, z/OS and z/VSE. | Server operating systems for Aerospike is Linux. |
| 5. | It does not support XML Format. | It does not support XML Format. |
| 6. | Server-side scripting is done in natural language. | It has user defined functions for server-side scripting. |
| 7. | It supports partitioning methods. | It supports partitioning method using sharding. |
| 8. | It supports SQL query language with add-on product Adabas SQL Gateway. | It does not support SQL query language. |
| 9. | It supports replication with add-on product Event Replicator. | It supports only one replication method – Selectable Replication Factor. |
| 10. | Adabas does not provide the concept of Referential Integrity. Hence, no Foreign Keys. | Aerospike also does not provide the concept of Referential Integrity. Hence, no Foreign Keys. |
| 11. | The license of Adabas is commercial. | The license of Aerospike is open-source. |
| 12. | The primary database model of Adabas is Multivalue DBMS. | The primary database model of Aerospike is Key-Value Store. |
| 13. | It does not offer an API for user-defined Map/Reduce methods. | It offers an API for user-defined Map/Reduce methods. |