创建一个远程维护数据库dba用户，具有创建数据库与创建用户的权限

CREATE USER dba PASSWORD 'dba' CREATEDB CREATEUSER;
		

进入psql

$ psql
psql (9.1.6)
Type "help" for help.

postgres=# CREATE USER dba PASSWORD 'dba' CREATEDB CREATEUSER;
CREATE ROLE
postgres=# \q
		

使用psql登录

$ psql -hlocalhost -Udba postgres
Password for user dba:
psql (9.1.6)
SSL connection (cipher: DHE-RSA-AES256-SHA, bits: 256)
Type "help" for help.

postgres=#