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. AgensGraph：
AgensGraph是企业图数据库管理系统，它存储和管理旧系统中的各种类型的数据，包括关系数据。 AgensGraph是基于PostgreSQL RDBMS的多模型数据库，并且支持关系和图形数据模型。 AgensGraph在关系模型中支持索引类型，包括BTree，Hash，Gist，Gin。它符合ACID规范，并提供基于触发器的逻辑复制以及高可用性工具，以确保您的稳定性。 Adabas和AgensGraph之间的区别：
| S.NO. | ADABAS | AGENSGRAPH |
|---|---|---|
| 1. | It was developed by Software AG in 1971. | It was developed by Bitnine Global Inc. in 2016. |
| 2. | It is an OLTP-DBMS for mainframes and Linux/Unix/Windows environments. | It is a multi-model database supporting relational and graph data models and built upon PostgreSQL. |
| 3. | Adabas is written in Natural language. | AgensGraph 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 AgensGraph are linux, OS X and Windows. |
| 5. | It does not support XML Format. | It also does not support XML Format. |
| 6. | Server-side scripting is done in Natural language. | It also supports the Server-side scripting. |
| 7. | It supports partitioning methods. | There is no partitioning method but can be realized using table inheritance. |
| 8. | It supports SQL query language with add-on product Adabas SQL Gateway. | It also supports SQL query language. |
| 9. | It supports replication with add-on product Event Replicator. | It supports only one replication methods : Master-Slave Replication. |
| 10. | Adabas does not provide the concept of Referential Integrity. Hence, no Foreign Keys. | AgensGraph provides the concept of Referential Integrity. Hence, there are Foreign Keys. |
| 11. | The license of Adabas is commercial. | The license of AgensGraph is open-source. |
| 12. | The primary database model of Adabas is Multivalue DBMS. | The primary database models of AgensGraph are Graph DBMS and Relational DBMS. |