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📜  Amazon SimpleDB 和 PostgreSQL 之间的区别

📅  最后修改于: 2021-09-08 15:48:41             🧑  作者: Mango

1. PostgreSQL :
PostgreSQL 是一个强大的开源对象关系数据库系统。由于其高稳定性,它以低维护工作提供良好的性能。 PostgreSQL 是第一个实现多版本并发控制 (MVCC) 功能的 DBMS。

2. 亚马逊简单数据库:
它是亚马逊托管的简单数据库服务,数据存储在亚马逊云中。 Amazon 是一项网络服务,用于实时对结构化数据运行查询。这个数据库是由 Amazon.com 用 Erlang 编写的。它具有以下特点——高可用性和灵活性,很少或没有管理负担。

PostgreSQL 和 Amazon SimpleDB 的区别:

S.No. PostgreSQL Amazon SimpleDB
1. It is developed By PostgreSQL Global Development Group on 1989. It is developed By Amazon in 2007.
2. It is Open Source. It is commercial.
3. Server operating systems for PostgreSQL is FreeBSD, HP-UX, Linux, NetBSD, OpenBSD, OS X, Solaris, Unix, Windows. Server operating systems for Amazon SimpleDB is hosted.
4. Its Primary database model is a Relational DBMS. 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 SQL. It does not support SQL.
7. APIs and other access methods for PostgreSQL is ADO.NET, JDBC, native C library, ODBC, streaming API for large objects. APIs and other access methods for Amazon SimpleDB is RESTful HTTP API.
8. Programming languages supported by PostgreSQL are .Net, C, C++, Delphi, Java, JavaScript (Node.js), Perl, PHP, Python, Tcl. Programming languages supported by Amazon SimpleDB are .Net, C, C++, Erlang, Java, PHP, Python, Ruby, Scala.
9. It supports Server-side scripting using user defined functions. It does not support Server-side scripting.
10. It supports Triggers. It does not support Triggers.
11. It supports Partitioning methods using partitioning by range, list and (since PostgreSQL 11) by hash. It does not support Partitioning methods.
12. It provides the concept of Referential Integrity. Hence, there is Foreign Keys. It does not provide the concept of Referential Integrity. Hence, there is no Foreign Keys.
13. It supports ACID properties. It does not support ACID properties.