阿里云表存储和Amazon DocumentDB之间的区别

1.阿里云表存储：
表存储是一个完全托管的宽列存储，用于通过实时访问的大量半结构化数据。这是使用多种数据模型的NoSQL数据库服务。该数据库由阿里云开发。它用于存储大量结构化数据，可用于进一步的文档编制。它用于有效的查询和数据分析。

2. Amazon DocumentDB：
Amazon DocumentDB是商业许可的数据库，具有以下功能，因为它是支持MongoDB工作负载的快速，可扩展，高度可用且完全托管的文档数据库服务。目前在AWS的加利福尼亚州，俄勒冈州，北弗吉尼亚州和爱尔兰地区可用。它通过模拟响应来实现Apache 2.0开源MongoDB 3.6 API。

阿里云表存储和Amazon DocumentDB之间的区别：

S.NO.	Alibaba Cloud Table Store	Amazon DocumentDB
1.	Developed By Alibaba on 2016.	Developed By Amazon on 2019.
2.	It is a fully managed Wide Column Store for large quantities of semi-structured data with real-time access.	It is a fast, scalable, highly available, and fully managed MongoDB-compatible database service
3.	The License of Alibaba Cloud Table Store is commercial.	The License of Amazon DocumentDB is commercial.
4.	In Alibaba Cloud Table Store, Hosted server operating systems.	In Amazon DocumentDB, Hosted server operating systems
5.	Its primary database model is Wide column store.	Its Primary database model is Document store.
6.	It supports user defined functions based Server-side scripting.	It does not support the Server-side scripting.
7.	There is only one partitioning methods – Sharding.	It does not support the partitioning methods.
8.	It does not supports SQL query language.	It does not supports SQL query language.
9.	It support replication methods.	It support Multi-availability zones for high availability
10.	It does not provides the concept of Referential Integrity. Hence, no Foreign Keys.	It does not provides the concept of Referential Integrity. Hence, no Foreign Keys. But may be implemented via Amazon Elastic MapReduce.
11.	It does not offers an API for user-defined Map/Reduce methods	It does not offers an API for user-defined Map/Reduce methods
12.	It supports Atomic single-row operations	It supports Atomic single-document operations.
13.	Programming languages supported are Java and Python.	Programming languages supported are Go, Java, JavaScript, PHP and Python.