PostgreSQL 15 Installation in Debian Bullseye – Step-by-step

How to Install

2. 2. Setting Up PostgreSQL 15 Repo

   How to Add PostgreSQL 15 Linux Debian Apt Repository

   PostgreSQL 15 Apt Repo Setup

   PostgreSQL 15 Apt Repository.

3. 3. Installing PostgreSQL 15

   Then to Install PostgreSQL 15 for Debian
   Especially relevant: in case you have a previous PostgreSQL Setup on System you may need first of Removing it.
   Simply play:

   sudo apt install postgresql-15 postgresql-client-15

   In case of a libpq5 Version issue, then first Remove any existing PostgresSQL Installation or provide to: Download & Install Manually the Library.
   Again to Search for other gears:

   apt search postgresql-15