How To Install PostgreSQL on Linux Mint 20

Install PostgreSQL on Linux Mint 20

In this tutorial, we will show you how to install PostgreSQL on Linux Mint 20. For those of you who didn’t know, PostgreSQL is a relational database management system that provides an implementation of the SQL querying language. It’s standards-compliant and has many advanced features like reliable transactions and concurrency without reading locks.

This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you through the step by step installation PostgreSQL on a Linux Mint 20 (Ulyana).

Install PostgreSQL on Linux Mint 20 Ulyana

Step 1. First, make sure that all your system packages are up-to-date by running these following apt commands in the terminal.

Step 2. Installing PostgreSQL on Linux Mint.

Let’s install Postgresql server using the following command:

Wait until the installation process completes. By default, the PostgreSQL service is started automatically after the installation. You can confirm if it is running with the command:

Step 3. PostgreSQL Roles and Databases.

Both user and group are presented as term role in PostgreSQL for handling database access permissions. Ident, Trust, Password and Peer are different methods for authentication in PostgreSQL. Ident the method mainly used on TCP/IP connection while Trust the method used to connect without password using given criteria in pg_hba.conf file.

Step 4. Accessing the PostgreSQL command prompt.

Once installing the PostgreSQL database server, by default, it creates a user ‘postgres’ with role ‘postgres’. It also creates a system account with the same name ‘postgres’. So to connect to Postgres server, log in to your system as user Postgres and connect database:

Now you are logged in to PostgreSQL database server. To check login info use following command from the database command prompt:

To disconnect from PostgreSQL database command prompt just type below command and press enter. It will return you back to Ubuntu command prompt:

Create a new user and database:

Congratulations! You have successfully installed PostgreSQL. Thanks for using this tutorial for installing the latest version of the PostgreSQL on the Linux Mint system. For additional help or useful information, we recommend you to check the official PostgreSQL website.

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