Ubuntu 22.04 LTS 安裝PostgreSQL

安裝步驟直接參考官方即可

sudo sh -c 'echo "deb 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

# 安裝後先啟用PostgreSQL服務

sudo systemctl restart postgresql

# 切換到postgres的帳號

sudo -i -u postgres

# 登入PostgreSQL

psql

# 先配置postgres密碼

ALTER USER postgres WITH PASSWORD 'Password';

# 開設DB dbname

CREATE DATABASE dbname;

# 建立使用者testaa並配置登入功能和密碼

CREATE ROLE testaa;
ALTER ROLE edah_user LOGIN PASSWORD 'password';

# dbname給予該使用者連接和所有權限

CREATE ROLE testaa;
GRANT CONNECT ON DATABASE dbname TO testaa;
GRANT ALL PRIVILEGES ON DATABASE dbname TO testaa;

# 移除該使用者前需要先移除相依賴權限，例如：資料庫和資料表權限

REVOKE ALL PRIVILEGES ON DATABASE dbname FROM testaa;
REVOKE ALL PRIVILEGES ON ALL TABLES IN SCHEMA public FROM testaa;
DROP ROLE testaa;