mysql8创建、删除用户以及授权、消权操作详解

mysql -uroot -p

select host,user from mysql.user;

drop user '用户名'@'主机名';
drop user 'wyy'@'192.168.0.105';

create user '用户名'@'允许那个主机链接' identified by '密码';

create user 'wyy'@'192.168.0.105' identified by 'wyy18222';
只允许192.168.0.105的主机链接

create user 'test'@'%' identified with mysql_native_password BY '密码';

Alter user '用户名'@'主机名' identified by '新密码';
alter user 'wyy'@'192.168.0.105' identified by '123';

grant all privileges on *.* to '用户名'@'主机名' with grant option;

grant all privileges on *.* to 'wyy'@'192.168.0.105' with grant option;

grant select,insert,update,delete on *.* to '用户名'@'主机名';

grant all privileges on 数据库 . * to 'wyy'@'192.168.0.105';

grant all privileges on xrs . * to 'wyy'@'192.168.0.105';
将数据库名为xrs的所有权限赋予wyy

grant all privileges on 数据库 . 指定表名 to 'wyy'@'192.168.0.105';
将某个数据库下的某个表的权限赋予wyy

show grants for 'wyy'@'192.168.0.105';

revoke all privileges on *.* from 'wyy'@'192.168.0.105';

GRANT
ALL PRIVILEGES
ON databaseName.*
TO userName@'ip';(注意这点跟以往数据库都不一样，无需后面跟着IDENTIFIED BY 'password';否则将提示ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'IDENTIFIED BY 'password'' at line 5)