1. PostgreSQL :
PostgreSQL is a powerful, open-source Object-relational database system. It provides good performance with low maintenance efforts because of its high stability. PostgreSQL was the first DBMS that implemented multi-version concurrency control (MVCC) feature.
2. IBM Db2 :
IBM Db2 is a family of data management products, including database servers, developed by IBM. It is a Relational Database Management System (RDBMS) which supports object-oriented features and non relational structure with XML. Db2 is designed to store, analyze and retrieve the data efficiently. It was initially released in 1983 and is written in C, C++, Java and Assembly language.
Difference between PostgreSQL and IBM Db2 :
| 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. |
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Last Updated :
30 Jun, 2020
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