What is PostgreSQL?

PostgreSQL is an open-source database management system for enterprise-class database applications. It supports both SQL and JSON for relational and non-relational queries for extensibility and SQL compliance. It also offers advanced data types and performance optimization features to store and scale complicated database workloads. It is also known as Postgres.

PostgreSQL Tutorial Summary


This PostgreSQL tutorial for beginners is designed to learn PostgreSQL basics to advance topics like creating a database, create a table, drop the database, drop table, select table, insert a record, update record, delete a record, order by, group by, triggers, substring, database keys, PSQL commands, etc. This PostgreSQL tutorials guide will help you with PostgreSQL learning and PostgreSQL basics. The advance stuff like Joins, View, Triggers, etc. are also covered in this PSQL tutorial.

What should I know?


This Postgres database tutorial guide is designed for beginners with little or no PostgreSQL Experience. This PostgreSQL training will help you understand all the basics of PostgreSQL.

PostgreSQL Course Syllabus

Introduction

Lesson 1 What is PostgreSQL? — Introduction, Advantages & Disadvantages
Lesson 2 Install PostgreSQL on Windows — How to Download & Install PostgreSQL
Lesson 3 PostgreSQL Data Types — Character | Numeric | Binary | Boolean

Advanced Stuff

Lesson 1 PostgreSQL/Postgres Create Database — How to Create Example
Lesson 2 PostgreSQL DROP/Delete DATABASE — PSQL Command Example
Lesson 3 How to Create & Drop Table in PostgreSQL — Learn with Example
Lesson 4 Create User in PostgreSQL — How to Add, Alt & Delete USER?
Lesson 5 DISTINCT in PostgreSQL — Select | Order By & Limit [Examples]
Lesson 6 PostgreSQL Array — Functions, Type, Example
Lesson 7 PostgreSQL BETWEEN — Learn with Example
Lesson 8 PostgreSQL IN, Not IN — Learn with Example
Lesson 9 PostgreSQL LIKE, Not Like, Wildcards (%, _ ) — Learn with Example
Lesson 10 PostgreSQL EXISTS — What is, Examples
Lesson 11 PostgreSQL DELETE Row matching 1/2 Condition — Learn with Example
Lesson 12 PostgreSQL ALTER Table — ADD Column, Rename Column/Table Examples
Lesson 13 PostgreSQL SUBSTRING() — What is PostgreSQL Substring? with Example
Lesson 14 PostgreSQL Union, Union ALL — Learn with Example
Lesson 15 PostgreSQL Joins — Inner, Outer, Left, Right, Natural with Examples
Lesson 16 PostgreSQL Create View — What is PostgreSQL View? and Example
Lesson 17 PostgreSQL Trigger — Create, Drop Example

Must Know!

Lesson 1 PostgreSQL vs MySQL — What is the Difference?

How to Install PostgreSQL

Following are the steps to download and install PostgreSQL:

  • Step 1) Go to https://www.postgresql.org/download and select your preferred operating system
  • Step 2) Open the installer .exe file to start installing
  • Step 3) Select your preferred language
  • Step 4) Locate the path to install the PostgreSQL software on your system
  • Step 5) Select the components you want to install
  • Step 6) Set the superuser password and make a note of it
  • Step 7) Give the port number as the default
  • Step 8) Click the Next button to start the installation

How to Start PostgreSQL

Following are the steps to start using PostgreSQL:

  • Step 1) Go to Start Menu and search pgAdmin 4
  • Step 2) The pgAdmin homepage will open
  • Step 3) Click on Servers > PostgreSQL 10 in the left tree
  • Step 4) Enter superuser password set during installation and click the OK button
  • Step 5) The PostgreSQL dashboard will open

Uses of PostgreSQL

Following are the popular uses of PostgreSQL:

  • Financial Industry:

    PostgreSQL is an ideal DBMS system for the financial industry.

  • Government GIS data:

    PostgreSQL offers powerful GIS, called "PostGIS" which provides hundreds of functions to process geometric data in different formats.

  • Manufacturing:

    PostgreSQL is also used in industrial manufacturing to speed up the overall business process.

  • Web technology and NoSQL:

    PostgreSQL works fine with all modern web frameworks like Django, Node.js, Hibernate, PHP, etc. It offers replication capabilities to scale out many database servers.

  • Scientific data:

    PostgreSQL offers wonderful analytical capabilities and a powerful SQL engine. This helps you to manage a large amount of data with ease.