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PostgreSQL Intro

PostgreSQL Notes · CodingNow 2.01 min readSource

What is PostgreSQL?

PostgreSQL is a free open-source database system that supports both relational (SQL) and non-relational (JSON) queries.

PostgreSQL is a back-end database for dynamic websites and web applications.

PostgreSQL supports the most important programming languages:

Python
Java
C/C++
C#
Node.js
Go
Ruby
Perl
Tcl

Note: PostgreSQL supports basically all features that other database management systems support.

PostgreSQL History

PostgreSQL was invented at the Berkeley Computer Science Department, University of California.

It started as a project in 1986 with the goal of creating a database system with the minimal features needed to support multiple data types.

In the beginning, PostgreSQL ran on UNIX platforms, but now it can run on various platforms, including Windows and MacOS.

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PostgreSQL Intro – FAQs

Quick answers about learning PostgreSQL Intro in PostgreSQL.

What does this PostgreSQL Intro note cover?

This free note from CodingNow 2.0 explains PostgreSQL Intro in PostgreSQL — concept, syntax and worked code examples you can copy, run and revise before interviews.

Is this PostgreSQL Intro tutorial free?

Yes. Every PostgreSQL topic on CodingNow 2.0, including PostgreSQL Intro, is 100% free with no signup required.

How long does it take to learn PostgreSQL Intro?

With focused practice, most students grasp PostgreSQL Intro in 1–3 days from these notes; pairing it with CodingNow 2.0's mentor-led course takes you to job-ready depth faster.

Where can I practise PostgreSQL Intro after reading?

Use the code examples in this note, then ask doubts for free on the CodingNow 2.0 Community (/community) — expert instructors answer within 24 hours.