1. Adabas :
The Adabas stands for an Adaptable Database System. It was developed by Software AG to run on IBM mainframes. It was launched in 1971. It is an OLTP-DBMS for mainframes and Linux/Unix/Windows environments. Adabas is an enterprise database management system (DBMS) designed for reliability, high performance, scalability and low total cost of ownership.
2. Alibaba Cloud Log Service :
The Log Service is a complete real-time data logging service. It was developed by Alibaba Group. It supports collection, consumption, shipping, search, and analysis of logs.
Difference between Adabas and Alibaba Cloud Log Service :
| S.NO. | ADABAS | Alibaba Cloud Log Service |
|---|
| 1. | It was developed by Software AG in 1971. | It was developed by AlibabaCloud Inc. in 2016. |
| 2. | It is an OLTP-DBMS for mainframes and Linux/Unix/Windows environments. | It is a complete real-time data logging service that supports collection, consumption, shipping, search, and analysis of logs. |
| 3. | It is not available as a cloud service. | It is available as a cloud service. |
| 4. | Server operating systems for Adabas are BS2000, Linux, Unix, Windows, z/OS and z/VSE. | In Alibaba Cloud Log Service there are Hosted server operating systems. |
| 5. | It does not support XML Format. | It also does not support XML Format. |
| 6. | Server-side scripting is done in Natural language. | It does not support the Server-side scripting. |
| 7. | It supports partitioning methods. | Supported partitioning method is Sharding. |
| 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 3 replicas. |
| 10. | Adabas does not provide the concept of Referential Integrity. Hence, no Foreign Keys. | Log Service also does not provide the concept of Referential Integrity. Hence, no Foreign Keys. |
| 11. | The license of Adabas is commercial. | The license of Alibaba Cloud Log Service is also commercial. |
| 12. | The primary database model of Adabas is Multivalue DBMS. | The primary database model of Alibaba Cloud Log Service is Search engine. |
| 13. | It does not offer any API for user-defined Map/Reduce methods. | It offers an ES-Hadoop Connector as a Map/Reduce methods. |
| 14. | It supports ACID properties for execution of operations. | It does not support ACID properties. |