📜  PostgreSQL和IBM DB2之间的区别

📅  最后修改于: 2021-08-25 17:22:48             🧑  作者: Mango

1. PostgreSQL:
PostgreSQL是一个功能强大的开源对象关系数据库系统。它具有较高的稳定性,因此可以在较低的维护工作量下提供良好的性能。 PostgreSQL是第一个实现多版本并发控制(MVCC)功能的DBMS。

2. IBM Db2:
IBM Db2是IBM开发的一系列数据管理产品,包括数据库服务器。它是一个关系数据库管理系统(RDBMS),它通过XML支持面向对象的功能和非关系结构。 Db2旨在有效地存储,分析和检索数据。它最初于1983年发布,并用C,C++, Java和汇编语言编写。

PostgreSQL和IBM Db2之间的区别:

SR.NO PostgreSQL IBM Db2
1. It is developed by PostgreSQL Global Development Group in 1989. It is developed by IBM in 1983.
2 PostgreSQL server operating systems are FreeBSD, HP-UX, Linux, NetBSD, OpenBSD, OS X, Solaris, Unix and Windows. Db2 server operating systems are AIX, HP-UX, Linux, Solaris, Windows and z/OS.
3 The primary database model for PostgreSQL is Relational DBMS. The primary database model for IBM Db2 is Relational DBMS.
4 It is written in C language. It is written in C, C++, Assembly language, Java languages.
5 Famous companies like National Audubon Society, Inc., FreshRealm, LLC, TIME Systems etc uses PostgreSQL. Famous companies like JPMorgan Chase, Bank of America, Scotiabank, Citi, etc use Db2.
6 It uses ADO.NET, JDBC, native C library, ODBC, streaming API for large objects as APIs. It uses ADO.NET, JDBC, JSON style queries info, ODBC, XQuery as APIs .
7 It is a open source software framework. It is a commercial databases.
8 It supports Secondary indexes. It supports the secondary indexes without any restrictions.
9 It supports C, .Net, C++, Java, JavaScript, PHP, Python, Ruby. It supports C, C++, Cobol, Java, Perl, PL/1, Python, R, Ruby.
10 It provides access rights for users and roles. It provide fine grained access rights according to SQL-standard.