Learn Basic PostgreSQL

What is PostgreSQL

What is PostgreSQL?

PostgreSQL is an ORDBMS [Open-Source Object-Relational Database Management System]. It is used to store data securely; supporting best practices, and allow recovering them when the request is processed.


PostgreSQL is initially introduced on 8th July 1996 at the University of California.


It is the first DBMS, which perform MVCC [Multi-Version Concurrency Control] feature, even before Oracle. The multi-version concurrency control attribute is known as snapshot isolation in Oracle.


It is written in C programming language.


PostgreSQL is cross-platform and runs on various operating systems such as Microsoft Windows, UNIX, FreeBSD, Mac OS X, Solaris, HP-UX, LINUX, and so on.

The PostgreSQL is the existing database for the macOS server.


PostgreSQL is also pronounced as Post-gress-Q-L, which is developed by the PostgreSQL Global Development Group (a worldwide team of volunteers), any organization or other private entity does not control it.


PostgreSQL will offer us the facility to add custom functions with the help of various programming languages such as Java, C, and C++, etc.


In this, we can describe our functional languages, index types and data types, and we can also create a custom plugin to increase the reliability of our needs.


Its source code is accessible under PostgreSQL license; thus, we can use it freely, change and allocate PostgreSQL in any form.


The PostgreSQL follow the transaction along with the ACID (Atomicity, Consistency, Isolation, and Durability) properties.


The primary objective of PostgreSQL is to handle a variety of jobs from single technologies to web service or the data warehouse with several parallel users.