Installing PostgreSQL on CentOS

Get Started
15 minutes
  • 3 Learning Objectives

About this Hands-on Lab

PostgreSQL is the world’s most advanced open source database. Its stability, functionality, and extensibility make it a primary choice for an RDBMS solution.

In this hands-on lab scenario you are the DBA for Awesome Company. You have been tasked with building a PostgreSQL database backend to facilitate the development of a new web application. This will help you become familiar with how to install the software, initialize the database, and make an initial connection as the administrative user.

Learning Objectives

Successfully complete this lab by achieving the following learning objectives:

Install the PostgreSQL Software
  • Open the distribution .repo file in vi:
    $ sudo vi /etc/yum.repos.d/CentOS-Base.repo
  • Exclude PostgreSQL by appending the following line to both the [base] and [updates] sections:
    $ exclude=postgresql*
  • Download and install the PGDG file from postgresql.org:
    $ sudo yum -y install https://download.postgresql.org/pub/repos/yum/reporpms/EL-7-x86_64/pgdg-redhat-repo-latest.noarch.rpm
  • Install PostgreSQL 12:
    $ sudo yum install -y postgresql12-server postgresql12-contrib
Initialize the Database
  • Initialize the database:
    $ sudo /usr/pgsql-12/bin/postgresql-12-setup initdb
  • Start and enable the postgresql-12 service:
    $ sudo systemctl start postgresql-12
    $ sudo systemctl enable postgresql-12
Connect as the Default User
  • Change to the postgres user and launch psql:
    $ sudo su - postgres
    $ psql

Additional Resources

In this hands-on lab scenario you are the DBA for Awesome Company. You have been tasked with building a PostgreSQL database backend to facilitate the development of a new web application. This will be accomplished by:

  • Installing version 12 of the PostgreSQL software
  • Initializing the database
  • Connecting as the default user

Step-by-step instructions are included in the task list. Feel free to follow along there or jump in on your own!

What are Hands-on Labs

Hands-on Labs are real environments created by industry experts to help you learn. These environments help you gain knowledge and experience, practice without compromising your system, test without risk, destroy without fear, and let you learn from your mistakes. Hands-on Labs: practice your skills before delivering in the real world.

Get Started
Who’s going to be learning?

How many seats do you need?

  • $499 USD per seat per year
  • Billed Annually
  • Renews in 12 months

Ready to accelerate learning?

For over 25 licenses, a member of our sales team will walk you through a custom tailored solution for your business.


$2,495.00

Checkout
Sign In
Welcome Back!
Thanks for reaching out!

You’ll hear from us shortly. In the meantime, why not check out what our customers have to say about ACG?