我已经安装了 PostgreSQL 并创建了一个具有超级用户权限的用户“userrole”。也可以通过python代码连接。
import psycopg2
conn = psycopg2.connect(
database="postgres", user="userrole", password="userroot", host='127.0.0.1', port= '5432'
)
cursor = conn.cursor()
cursor.execute("select version()")
data = cursor.fetchone()
print("Connection established to: ",data)
conn.close()
这是我的输出：
Connection established to: ('PostgreSQL 12.6 (Ubuntu 12.6-0ubuntu0.20.04.1) on x86_64-pc-linux-gnu, compiled by gcc (Ubuntu 9.3.0-17ubuntu1~20.04) 9.3.0, 64-bit',)
Process finished with exit code 0
我面临的问题是通过 CLI 无法连接到该用户：
(venv) resh@project:~/PycharmProjects/utilities$ sudo su -l userrole
[sudo] password for resh:
su: user userrole does not exist
抱歉，我是 ubuntu 新手，现在我更改了命令，但仍然遇到问题：
(venv) resh@project:~/PycharmProjects/utilities$ sudo psql -U userrole
[sudo] …