PostgreSQL

Install PostgreSQL di Ubuntu 20.04.01

  sudo apt update
  sudo apt install postgresql postgresql-contrib

Cara akses PostgreSQL

Jika kita mempunyai database dengan nama psql

Cara 1

  sudo -i -u postgres
  psql 

Cara 2

  sudo -u postgres psql

Cara 3 (jika kita tidak akan menggunakan sudo - untuk user biasa) Buat terlebih dahulu usernya

sudo -u postgres psql

postgres=# create database mydb;
postgres=# create user myuser with encrypted password 'mypass';
postgres=# grant all privileges on database mydb to myuser;

psql -U myuser mydb

Perintah PostgreSQL

Membuat user

  sudo -u postgres createuser --interactive

Membuat database

  sudo -u postgres createdb <namadb>

atau

  sudo -i -u postgres
  psql 
  create database <namadb>

Cek database

  \list

Pilih database

  \connect <namadb>

Delete postgres user

REASSIGN OWNED BY myuser TO postgres;
DROP OWNED BY myuser;
DROP USER myuser;

Untuk di server

Selain setting security groups di server, setting juga di etc/postgresql/<version>/main/pg_hba.conf

host     all     all     127.0.0.1/32     md5
host     all     all     10.0.1.0/24     md5

Dan di etc/postgresql/<version>/main/postgresql.conf Edit postgresql.conf and change listen_address:

listen_addresses='*'

Referensi

• https://serverfault.com/questions/336596/opening-port-5432-on-ubuntu
• https://medium.com/coding-blocks/creating-user-database-and-adding-access-on-postgresql-8bfcd2f4a91e
• https://phoenixnap.com/kb/delete-postgres-user