mysql 权限

grant all on *.* 
grant 权限 on 数据库.表 to 用户@'ip地址' identified by '密码';
刷新授权表 flush privileges
    csh.qtf
               csh.*

grant all on *.*    to user1@'192.168.1.%' identified by '密码';
grant select on *.*   to  user1@'192.168.1.%' identified by '密码';
grant select,insert,delete,update on *.*     user1@'192.168.1.%' identified by '密码';

修改用户密码：
mysql> update user set password=password('123456') where user='root';

查看用户信息
use mysql
select User,Host,Password from user;       #查看用户信息
show grants for 用户@'ip地址';                 #查看授权信息

grant all on *.* 
grant 权限 on 数据库.表 to 用户@'ip地址' identified by '密码';
刷新授权表 flush privileges
    csh.qtf
               csh.*

grant all on *.*    to user1@'192.168.1.%' identified by '密码';
grant select on *.*   to  user1@'192.168.1.%' identified by '密码';
grant select,insert,delete,update on *.*     user1@'192.168.1.%' identified by '密码';

查看用户信息
use mysql
select User,Host,Password from user;       #查看用户信息
show grants for 用户@'ip地址';                 #查看授权信息

revoke 权限  on *.*   from user1@'192.168.1.%'；
revoke select,insert,delete,update  on *.*   from user1@'192.168.1.%'；
flush privileges;
show grants for user1@'192.168.1.%';

revoke SELECT, INSERT ON `csh`.*  from 'cshuser'@'192.168.31.9' ;

删除无效用户;
select user,host from user;查询用户

delete from user where User='user1';

mysql -u用户 -p密码
show databases;
use 数据库名;
例如: use  mysql;
desc user;

mysql> grant select on usvn.* to usvnuser@'192.168.2.251' identified by 'usersvnpwd';
Query OK, 0 rows affected (0.01 sec)

mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)