📌  相关文章
📜  PostgreSQL与SQL Server

📅  最后修改于: 2020-12-01 00:58:49             🧑  作者: Mango

PostgreSQL与SQL Server

PostgreSQL和Microsoft SQL Server在关系数据库管理系统中得到了广泛使用，并且与多个小型和大型企业应用程序兼容，即使这两个数据库根据开发人员的要求都具有不同的版本。

在本节中，我们将基于各个方面来讨论PostgreSQL和SQL Server数据库系统之间的区别。

注意：RDBMS为用户提供了使用诸如创建，更新，删除和读取之类的不同命令来处理后端数据的方法，因为无论开发人员何时创建任何软件项目，他们总是偏爱RDBMS(关系数据库管理系统)。

他们可以根据需要选择任何数据库应用程序。程序员还可以选择商业数据库或开源数据库。通常，开发人员通常仍选择商业数据库，因为与免费软件相比，它们具有更高级的功能。

什么是PostgreSQL?

PostgreSQL是最流行的对象关系数据库管理系统，用于管理关系数据库以及保护数据。它是一种开源数据库软件，用C编程语言编写。

PostgreSQL遵循事务以及ACID(原子性，一致性，隔离性和持久性)属性。它支持各种操作系统，例如Microsoft Windows ，UNIX，Mac OS X， LINUX等。

它是提供多版本并发控制(MVCC)功能的初始数据库。

什么是Microsoft SQL Server?

它是Microsoft Corporation推出的关系数据库管理系统(RDBMS)数据库软件。 SQL Server用于存储，检索和访问开发人员从标准系统或在远程位置的帮助下的数据请求。

为了与数据库相互关联，它使用SQL查询。它本身具有Transact-SQL(T-SQL)查询语言，它提供了另一套编程概念，例如存储过程，声明变量，异常处理等。与其他RDBMS一样，它使用SSMS(SQL Server Management Studio)接口工具，该工具与64位和32位环境兼容。

让我们看一下PostgreSQL与Microsoft SQL Server之间的一些本质区别，这将有助于我们增强知识：

Different aspects PostgreSQL SQL Server
Definition It is an object-relational database management system that is compatible with various SQL features such as subqueries, foreign keys, and triggers.
Also, it supports multiple user-defined types and functions.		 It is a database management system that is primarily used for multiple data warehousing solutions and E-commerce.
Programmed or Written in It has primarily written in C language. It has primarily written in C++ language.
Developed The PostgreSQL global development group develops it. Microsoft develops it.
Released PostgreSQL was released on 8th July 1996. SQL Server was released on 24 April 1989.
Latest release version The latest release version is PostgreSQL 12.3 [May 2020] The latest release version is SQL Server 2019 [November 2019]
License It is an open-source tool. It is a commercial tool.
Programming languages It is compatible with various programming languages such as C, C++, Java, .Net, Perl, Python, Tcl, JavaScript (Node.js), and PHP. It is compatible with various programming languages such as
C++, PHP, C#, Go, Java, Python JavaScript (Node.js), PHP, R, Visual Basic, and Ruby.
Features Following are the features of PostgreSQL:
  • It is free to download.
  • It is highly extensible.
  • It supports various programming languages.
  • It is highly reliable.
  • It supports multiple features of SQL.
  • Compatible on several operating systems.
  • It is compatible with Data Integrity.
 Following are the features of Microsoft SQL Server:
  • It is platform-independent.
  • It is compatible with SQL (SEQUEL) language, case insensitive, and has a shared database.
  • It is highly scalable.
  • It is both commands based and GUI software.
  • It is implemented from the requirement of RDBMS.
  • It can be run on a single computer system or a network of cloud servers.
Platforms Primarily it supports Unix, Window, Linux, FreeBSD, HP-UX, NetBSD, OpenBSD, OS X, and Solaris. Primarily it supports Windows and Linux operating systems.
Materialized Views It is not compatible with materialized views rather than they have a module called mat views that is used for rebuilding any materialized view. The SQL server is compatible with materialized views.
Case sensitive PostgreSQL is case sensitive. SQL Server is not case sensitive.
In memory competences PostgreSQL does not have memory capabilities. SQL Server has memory capabilities.
Computed Columns It does not offer computed columns as well as it has functional indexes that work just like a view. It offers computed columns, but views are chosen over computed columns.
Replication It supports master-slave replication. And it also has the third party options, where they can select from the ones which are free and not free. SQL Server supports replication like (mirroring, log shipping, transactional, snapshot, and merge), but depends on the SQL-Server Edition.
Official website https://www.postgresql.org/ https://www.microsoft.com/en-in/sql-server/sql-server-2019