Mariadb或MySQL创建用户和授权基本操作

一、创建用户

CREATE USER 'username'@'host' IDENTIFIED BY 'password';

示例

CREATE USER 'dog'@'localhost' IDENTIFIED BY '123456';
CREATE USER 'pig'@'192.168.1.101_' IDENDIFIED BY '123456';
CREATE USER 'pig'@'%' IDENTIFIED BY '123456';
CREATE USER 'pig'@'%' IDENTIFIED BY '';
CREATE USER 'pig'@'%';

二、授权

GRANT privileges ON databasename.tablename TO 'username'@'host'

简单示例

GRANT SELECT, INSERT ON test.user TO 'pig'@'%';
GRANT ALL ON *.* TO 'pig'@'%';
GRANT ALL ON maindataplus.* TO 'pig'@'%';

三、撤销用户权限

REVOKE privilege ON databasename.tablename FROM 'username'@'host';

示例

REVOKE SELECT ON *.* FROM 'pig'@'%';

四、删除用户

DROP USER 'username'@'host';