Adabas与阿里云MaxCompute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MaxCompute：
MaxCompute(以前称为ODPS)是用于大规模数据仓库的通用，完全托管，多租户数据处理平台。它用于存储和计算批量结构化数据。它提供了广泛的数据仓库解决方案以及大数据分析和建模服务。

Adabas和阿里云MaxCompute之间的区别：

S.NO.	ADABAS	Alibaba Cloud MaxCompute
1.	It was developed by Software AG in 1971.	It was developed by Alibaba in 2016.
2.	It is an OLTP-DBMS for mainframes and Linux/Unix/Windows environments.	It is a general purpose, fully managed, multi-tenancy data processing platform for large-scale data warehousing.
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 MaxCompute 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 supports user defined functions based 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 supports SQL-like query language.
9.	It supports Replication with add-on product Event Replicator.	It also supports replication methods.
10.	Adabas does not provide the concept of Referential Integrity. Hence, no Foreign Keys.	MaxCompute also does not the concept of Referential Integrity. Hence, no Foreign Keys.
11.	The license of Adabas is commercial.	The license of Alibaba Cloud MaxCompute is also commercial.
12.	The primary database model of Adabas is Multivalue DBMS.	The primary database model is Search Engine.
13.	It does not offer any API for user-defined Map/Reduce methods.	It offers an API for user-defined Map/Reduce methods.
14.	It supports ACID properties for execution of operations.	It does not support ACID properties.