Adabas与阿里云日志服务之间的区别

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.阿里云日志服务：
日志服务是一个完整的实时数据记录服务。它是由阿里巴巴集团开发的。它支持日志的收集，使用，运输，搜索和分析。 Adabas和阿里云日志服务之间的区别：

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.