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Installing PostgreSQL in Ubuntu 20.04
- Step 1 - Installation
sudo sh -c 'echo "deb http:https://apt.postgresql.org/pub/repos/apt $(lsb_release -cs)-pgdg main" > /etc/apt/sources.list.d/pgdg.list'
wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add -
sudo apt-get update
sudo apt-get -y install postgresql postgresql-contrib
sudo systemctl status postgresql - Step 2 - Connection to PostgreSQL
sudo -u postgres psql- Step 3 - Securing PostgreSQL by creating a password for
postgresuser account
sudo passwd postgres- Step 4 - Create a secure/strong password for
PostgreSQLadmin database user/role
su - postgres
psql -c "ALTER USER postgres WITH PASSWORD 'secure_password_here';"
exit
sudo systemctl restart postgresql - Step 5- Install pgAdmin
curl https://www.pgadmin.org/static/packages_pgadmin_org.pub | sudo apt-key add -
sudo sh -c 'echo "deb https://ftp.postgresql.org/pub/pgadmin/pgadmin4/apt/focal pgadmin4 main" > /etc/apt/sources.list.d/pgadmin4.list'
sudo apt-get update
sudo apt-get -y install pgadmin4
sudo systemctl restart postgresql - As personal preference, add these settings to
.bashrcpostgres-status, postgres-start, postgres-stop, postgres-restart
alias postgres-restart='sudo systemctl restart postgresql'
alias postgres-start='sudo systemctl start postgresql'
alias postgres-stop='sudo systemctl stop postgresql'
alias postgres-status='sudo systemctl status postgresql'
alias postgres-enable='sudo systemctl enable postgresql'
alias postgres-disable='sudo systemctl disable postgresql'
alias postgres-disable='sudo systemctl is-active postgresql'
alias postgres-disable='sudo systemctl is-enabled postgresql'-
Additional PostgreSQL references
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Sample postgres data sets
unzip ~/Downloads/dvdrental.zip
psql postgres=# create database dvdrental;
postgres=# \q
pg_restore -h localhost -U postgres -d dvdrental ~/Downloads/dvdrental.tar