目录
新建用户
添加远程访问权限
关闭远程访问
新建用户
查看用户命令
select user, host from mysql.user;
创建用户
CREATE USER 'username'@'host' IDENTIFIED BY 'password';
username:用户名;host:指定在哪个主机上可以登录,本机可用localhost,%通配所有远程主机;password:用户登录密码;
添加远程访问权限
mysql数据库设置用户远程连接权限
grant all privileges on *.* to 'root'@'%' identified by 'root4xml004a' with grant option;
创建数据库
CREATE DATABASE 库名;
授予用户在本地服务器对该数据库的全部权限
grant all privileges on dbname.* to zhrt@localhost identified by '123456';
设置用户testuser,只拥有【查询】操作权限;
grant select on *.* to testuser@localhost identified by "123456" WITH GRANT OPTION;
授予用户通过外网IP对于该数据库的全部权限
grant all privileges on dbname.* to 'zhrt'@'%' identified by '123456';
刷新权限
FLUSH PRIVILEGES;
关闭远程访问
如已有root用户使用localhost可设置为127.0.0.1
update user set host = "localhost" where user = "root" and host= "%";
或者
delete from user where user="root" and host="%" ;
退出mysql
exit;
关闭/启动/重启 mysql
service mysql stop
service mysql start
service mysql restart
查看当前用户: SELECT CURRENT_USER();
查看某个用户的权限:show grants for 'root'@'%';
撤销用户权限:
REVOKE privilege ON databasename.tablename FROM 'username'@'host';
privileges:用户的操作权限,如SELECT,INSERT,UPDATE等,如果要授予所的权限则使用ALL
databasename:数据库名
tablename:表名,如果要授予该用户对所有数据库和表的相应操作权限则可用*表示,如*.*
设置完mysql需要重启服务