1. MySQL用户管理

1. 使用用户名密码登录MySQL数据库

shell> mysql --user=finley --password db_name

2.添加新用户

CREATE USER 'custom'@'localhost' IDENTIFIED BY 'password';

3.给用户添加数据库操作权限

GRANT SELECT,INSERT,UPDATE,DELETE,CREATE,DROP ON bankaccount.* TO 'custom'@'localhost';

4.删除用户

mysql> DROP USER 'jeffrey'@'localhost';

5.设置用户数据库操作资源限制

CREATE USER 'francis'@'localhost' IDENTIFIED BY 'frank'

->     WITH MAX_QUERIES_PER_HOUR 20->          MAX_UPDATES_PER_HOUR 10->          MAX_CONNECTIONS_PER_HOUR 5->          MAX_USER_CONNECTIONS 2;

6.修改用户操作数据库资源限制

mysql> ALTER USER 'francis'@'localhost' WITH MAX_QUERIES_PER_HOUR 100;

7.密码过期设置

ALTER USER 'jeffrey'@'localhost' PASSWORD EXPIRE;

8.MySQL密码的有效时间

SET GLOBAL default_password_lifetime = 180;