In this tutorial, we will show you how to install PostgreSQL on Debian 10 Buster. For those of you who didn’t know, PostgreSQL or Postgres is an open-source relational database management system. It is popular and has many advanced features like reliable transactions and concurrency without read 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 of PostgreSQL on a Debian 10 (Buster) server.
Install PostgreSQL on Debian 10 Buster
Step 1. Before we install any software, it’s important to make sure your system is up to date by running the following
apt commands in the terminal:
apt update apt upgrade
Step 2. Installing PostgreSQL on Debian 10.
PostgreSQL is available in the default repositories. Now, Install PostgreSQL packages using
sudo apt install postgresql postgresql-contrib
Once the installation is completed, the PostgreSQL service will start automatically. You can verify the installation using the below command:
sudo -u postgres psql -c "SELECT version();"
It will show result output as given below:
PostgreSQL 9.6.13 on x86_64-pc-linux-gnu, compiled by gcc (Debian 6.3.0-18+deb9u1) 6.3.0 20191016, 64-bit
Step 3. Accessing the PostgreSQL command prompt.
After installing the PostgreSQL database server, by default, it creates a user ‘postgres’ with role ‘postgres’. It also creates a system account with same name ‘postgres’. So to connect to postgres server, login to your system as user postgres and connect database:
su - postgres psql
Now you are logged in to the PostgreSQL database server. To check login info use the following command from the database command prompt:
To disconnect from the PostgreSQL database command prompt just type the below command and press enter. It will return you back to the Ubuntu command prompt:
Create a new user and database:
### For example, let us create a new user called “intan” with password “ramona”, and database called “intandb”. ### sudo -u postgres createuser -D -A -P intan sudo -u postgres createdb -O idroot intandb
Congratulations! You have successfully installed the PostgreSQL Server. Thanks for using this tutorial for installing PostgreSQL in Debian 10 Buster systems. For additional help or useful information, we recommend you check the official PostgreSQL website.