mysql 权限管理

1.建立用户

CREATE USER 'dingyingsi'@'localhost' IDENTIFIED BY 'dys123'; //将该用户建立在本机上
CREATE USER 'dingyingsi'@'%' IDENTIFIED BY 'dys123';　　//建立的用户能够远程链接本机

2.受权

grant select,insert,update,delete,create,drop on dys.tb1 to 'dingyingsi'@'localhost';
grant all privileges on dys.tb1 to 'dingyingsi'@'localhost';
grant all privileges on *.* to 'dingyingsi'@'localhost';

3.查看受权

SHOW GRANTS FOR 'dingyingsi'@'localhost'

4.撤销权限

revoke all privileges on *.* from 'dingyingsi'@"%";  
revoke all on db1.tb1 from 'dingyingsi'@"%";  
revoke all on db1.* from 'dingyingsi'@"%";