mysql8学习笔记③数据库的授权操作

mysql8学习笔记③数据库的授权操作

Python连接mysql数据库

# yum install -y python-setuptools python-devel

# 安装pip工具

# curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py

# python get-pip.py

# pip install --upgrade setuptools

# pip install PyMySQL

数据库的授权

查看创建用户的帮助

# mysql -uroot -p'Jad(2020'

mysql> help create user;

查看插件

设置密码策略，创建用户，为了测试方便修改密码策略，生产环境不建议这么操作

set global validate_password.policy=low;

set global validate_password.length=6;

create user mc_test@'10.11.0.%' identified by '123456' with max_user_connections 1;

mysql8.0创建账号，添加账户、权限等常用操作

1.授予某个用户多个数据库的所有权限，包括授权权限   WITH GRANT OPTION;

CREATE USER 'online_video_user'@'%' IDENTIFIED BY 'pass';

grant all privileges on vidcloud_res_oa.* TO 'online_video_user'@'%' WITH GRANT OPTION;

grant all privileges on ove.* TO 'online_video_user'@'%' WITH GRANT OPTION;

2.添加root账号

CREATE USER 'root'@'127.0.0.1' IDENTIFIED BY 'pass';

grant all privileges on *.* TO 'root'@'127.0.0.1' WITH GRANT OPTION;

3.添加某个账户对库有增删改查权限

CREATE USER 'ove_user'@'172.30.0.%' IDENTIFIED BY 'pass';

grant select,insert,update,delete ON ove.* TO 'ove_user'@'172.30.0.%';

4.修改数据库密码

# 修改root密码

mysql> update mysql.user set authentication_string = password('pass'), password_expired = 'N', password_last_changed = now() where user = 'root';

mysql> flush privileges;

授予和回收权限

mysql> grant select,delete,insert,update on mysql.* to mc_test@'10.11.0.%';

mysql> revoke delete,insert,update on mysql.* from mc_test@'10.11.0.%';