postgresql¶
Cheatsheet: quickref
From website: https://www.cherryservers.com/blog/how-to-install-and-setup-postgresql-server-on-ubuntu-20-04
Install postgresql:¶
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'
sudo apt update
sudo apt install postgresql postgresql-contrib
Check service is running:
service postgresql status
service postgresql start
Create DB and users¶
Start postgres CLI:
sudo -u postgres psql
Create/delete database:
CREATE DATABASE db_name;
DROP DATABASE db_name;
Create user:
CREATE USER username WITH PASSWORD 'password';
Connect to DB and give access to user:
\c db_name;
GRANT ALL ON SCHEMA public TO username;
Useful Commands:¶
\l - list all database \d - general display of information \du - display all users \dt - display all tables \c - connect to database
Postgres python drivers for developement:¶
pip install psycopg2-binary
(note, do not do this for production dependencies) See here why