1.适用于PostgreSQL的阿里云AnalyticDB：
AnalyticDB是阿里云上的在线分析处理数据库系统。它提供PostgreSQL和MySQL版本。 PostgreSQL的AnalyticDB是基于Greenplum开源数据库程序的在线大规模并行处理(MPP)数据仓库服务，并且通过阿里云的一些深入扩展得到了增强。
2. Amazon SimpleDB：
它是Amazon托管的简单数据库服务，数据存储在Amazon Cloud中。它是Amazon是一项用于实时在结构化数据上运行查询的Web服务。该数据库由Amazon.com用Erlang编写。它具有以下功能–高可用性和灵活性，几乎没有管理负担。
适用于PostgreSQL的阿里云AnalyticDB和Amazon SimpleDB之间的区别：
| S.NO. | Alibaba Cloud AnalyticDB for PostgreSQL | Amazon SimpleDB |
|---|---|---|
| 1. | Developed By Alibaba, Pivotal Software Inc., and PostgreSQL Global Development Group in 2016. | Developed By Amazon in 2007. |
| 2. | It is an online MPP (Massively Parallel Processing) data warehousing service based on Greenplum. | It is a hosted simple database service by Amazon, with the data stored in the Amazon Cloud. |
| 3. | Its primary database model is Relational DBMS. | Its primary database model is the Key-value store. |
| 4. | The programming language supported are C, Java, PHP, R, and Python. | The programming language supported is .Net, C, C++, Erlang, Java, PHP, Python, Ruby, and Scala. |
| 5. | It supports the ACID property. | It does not support the ACID property. |
| 6. | It supports Server-side scripting. | It does not support the Server-side scripting |
| 7. | It supports partitioning methods. | It does not support partitioning methods. |
| 8. | It supports SQL query language. | It does not support the SQL query language. |
| 9. | It supports replication methods. | It supports replication methods with multi-availability zones for high availability. |
| 10. | It provides the concept of Referential Integrity. Hence, there are Foreign Keys. | It does not provide the concept of Referential Integrity. Hence, no Foreign Keys. |
| 11. | It supports the ACID property. | It supports Atomic single-document operations |