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CREATE USER 'username'@'host' IDENTIFIED BY 'password'; |
%
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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'@'%'; |
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GRANT privileges ON databasename.tablename TO 'username'@'host' |
SELECT
,INSERT
,UPDATE
等,如果要授予所的权限则使用ALL
*
表示,如*.*
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GRANT SELECT, INSERT ON test.user TO 'pig'@'%'; GRANT ALL ON *.* TO 'pig'@'%'; |
用以上命令授权的用户不能给其它用户授权,如果想让该用户可以授权,用以下命令:
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GRANT privileges ON databasename.tablename TO 'username'@'host' WITH GRANT OPTION; |
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SET PASSWORD FOR 'username'@'host' = PASSWORD('newpassword'); |
如果是当前登陆用户用:
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SET PASSWORD = PASSWORD("newpassword"); |
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SET PASSWORD FOR 'pig'@'%' = PASSWORD("123456"); |
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REVOKE privilege ON databasename.tablename FROM 'username'@'host'; |
privilege, databasename, tablename:同授权部分
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REVOKE SELECT ON *.* FROM 'pig'@'%'; |
假如你在给用户'pig'@'%'
授权的时候是这样的(或类似的):GRANT SELECT ON test.user TO 'pig'@'%'
,则在使用REVOKE SELECT ON *.* FROM 'pig'@'%';
命令并不能撤销该用户对test数据库中user表的SELECT
操作。相反,如果授权使用的是GRANT SELECT ON *.* TO 'pig'@'%';
则REVOKE SELECT ON test.user FROM 'pig'@'%';
命令也不能撤销该用户对test数据库中user表的Select
权限。
具体信息可以用命令SHOW GRANTS FOR 'pig'@'%';
查看。
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DROP USER 'username'@'host'; |
作者:hoxis
链接:https://www.jianshu.com/p/d7b9c468f20d
來源:简书
著作权归作者所有。商业转载请联系作者获得授权,非商业转载请注明出处。