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Install PostgreSQL & pgAdmin4 on Ubuntu
How to Install PostgreSQL 11 on Ubuntu 18.04 & 16.04 LTS
1. Enable PostgreSQL Apt Repository
Run this command in your home directory
sudo apt-get install wget ca-certificates
wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add -
sudo sh -c 'echo "deb http://apt.postgresql.org/pub/repos/apt/ `lsb_release -cs`-pgdg main" >>
/etc/apt/sources.list.d/pgdg.list'
2. Install PostgreSQL on Ubuntu
sudo apt-get update
sudo apt-get install postgresql postgresql-contrib
3. Connect to PostgreSQL
After installing the PostgreSQL database server, by default, it creates a user ‘postgres’ with role ‘postgres’. Also creates a system account with the same name ‘postgres’. So to connect to Postgres server, log in to your system as user postgres and connect database.
sudo su - postgres
Psql
\q
Install pgAdmin4 on Ubuntu
1. sudo apt-get install pgadmin4 pgadmin4-apache2
2. Then connect to http://example.com/pgAdmin4
Ref:
https://tecadmin.net/install-postgresql-server-on-ubuntu/
https://tecadmin.net/install-pgadmin4-on-ubuntu/