MongoDB和Amazon SimpleDB之间的区别

1. MongoDB：
MongoDB是用于大量数据存储的面向文档的开源数据库。它属于NoSQL数据库的分类。 NoSQL工具意味着它不使用通常的行和列。 MongoDB使用BSON(文档存储格式)，它是JSON文档的二进制样式。

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。

MongoDB和Amazon SimpleDB之间的区别：

S.NO.	MongoDB	Amazon SimpleDB
1.	It is developed By MongoDB, Inc in 2009.	It is developed By Amazon in 2007.
2.	It is Open Source.	It is commercial.
3.	Server operating systems for MongoDB is Linux, OS X, Solaris, Windows.	Server operating systems for Amazon SimpleDB is hosted.
4.	Its Primary database model is a Document store.	Its primary database model is the Key-value store.
5.	It has predefined data type such as date or float.	It has has no predefined data type such as date or float.
6.	It supports read-only SQL queries via the MongoDB Connector for BI.	It does not support SQL.
7.	APIs and other access methods for MongoDB is proprietary protocol using JSON.	APIs and other access methods for Amazon SimpleDB is RESTful HTTP API.
8.	Programming languages supported by MongoDB are Actionscript, C, C#, C++, Clojure, ColdFusion, D, Dart, Delphi, Erlang, Go, Groovy, Haskell, Java, JavaScript, Lisp, Lua, MatLab, Perl, PHP, PowerShell, Prolog, Python, R, Ruby, Scala, Smalltalk.	Programming languages supported by Amazon SimpleDB are .Net, C, C++, Erlang, Java, PHP, Python, Ruby, Scala.
9.	It supports Server-side scripting using JavaScript.	It does not support Server-side scripting.
10.	It supports Triggers.	It does not support Triggers.
11.	It supports Partitioning methods using Sharding.	It does not support Partitioning methods.
12.	It does not provide the concept of Referential Integrity. Hence, there is no Foreign Keys.	It also does not provide the concept of Referential Integrity. Hence, there is no Foreign Keys.
13.	It supports Multi-document ACID Transactions with snapshot isolation.	It does not support ACID properties.