How to Install PostgreSQL and pgAdmin4 in Ubuntu 21.04

The PostgreSQL database system is an open-source object-relational database that extends the SQL language to store and scale the most complicated data sets. PostgreSQL provides a wide range of features designed to help developers build applications and administrators safeguard data.
For more explanation on this video: https://www.linuxhelp.com/how-to-install-postgresql-and-pgadmin4-in-ubuntu-21-04