-- 创建用户 CREATE USER 'james'@'localhost' IDENTIFIED BY 'tiger'; -- 登录数据库 mysql -h localhost -u james -p -- 修改用户账号 RENAME USER james@'localhost' TO jack@'localhost'; -- 修改用户口令 SET PASSWORD FOR 'jack'@'localhost'= PASSWORD('lion'); -- 删除用户 DROP USER 'jack'@'localhost'; -- 授予用户权限 GRANT SELECT,INSERT ON *.* TO 'testUser'@'localhost' IDENTIFIED BY 'testPwd' WITH GRANT OPTION; -- 授权后查询用户权限 SELECT Host,User,Select_priv,Insert_priv,Grant_priv FROM mysql.user WHERE User='testUser'; -- 撤销用户权限 REVOKE INSERT ON *.* FROM 'testUser'@'localhost';