sudo apt update; sudo apt upgrade; sudo apt install postgresql postgresql-contrib; sudo systemctl start postgresql.service
https://www.digitalocean.com/community/tutorials/how-to-install-postgresql-on-ubuntu-20-04-quickstart
sudo apt update; sudo apt upgrade; sudo apt install postgresql postgresql-contrib; sudo systemctl start postgresql.service
https://www.digitalocean.com/community/tutorials/how-to-install-postgresql-on-ubuntu-20-04-quickstart