openGauss每日一练第5天 | 创建修改用户属性

1.创建用户user1、user2和user3，user1具有CREATEROLE权限，user2具有CREATEDB权限，要求使用两种不同的方法设置密码

CREATE USER user1 CREATEROLE IDENTIFIED BY ‘tom@123’;

CREATE USER user2 CREATEDB PASSWORD ‘tom@456’;

CREATE USER user3 PASSWORD ‘tom@789’;

\du

2.修改用户user1的密码

ALTER USER user1 IDENTIFIED BY ‘tom@123’ REPLACE ‘tom@123’;

3.重命名用户user2

alter USER user2 rename to ‘tom2’;

4.将用户user1的权限授权给用户user3，再回收用户user3的权限

GRANT user1 to user3;

REVOKE user3 FROM user1;

5.删除所有创建用户
过程中使用\du或\du+查看用户信息

\du

drop USER user 1;
drop USER tom2;
drop USER user 3;