Home Database Mysql Tutorial MySQL用户权限

MySQL用户权限

Jun 07, 2016 pm 03:46 PM
grant mysql object database Permissions user

grant 权限 on 数据库对象 to 用户 一、grant 普通数据用户,查询、插入、更新、删除数据库中所有表数据的权利。 grant select on testdb.* to common_user@'%' grant insert on testdb.* to common_user@'%' grant update on testdb.* to common_user@'%' g

grant 权限 on 数据库对象 to 用户
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    一、grant 普通数据用户,查询、插入、更新、删除数据库中所有表数据的权利。

 

grant select on testdb.* to common_user@'%' grant insert on testdb.* to common_user@'%' grant update on testdb.* to common_user@'%' grant delete on testdb.* to common_user@'%'
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或者,用一条 MySQL 命令来替代:

grant select, insert, update, delete on testdb.* to common_user@'%'
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    二、grant 数据库开发人员,创建表、索引、视图、存储过程、函数。。。等权限。

 

grant 创建、修改、删除 MySQL 数据表结构权限。

grant create on testdb.* to developer@'192.168.0.%'; grant alter on testdb.* to developer@'192.168.0.%'; grant drop on testdb.* to developer@'192.168.0.%';
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grant 操作 MySQL 外键权限。

grant references on testdb.* to developer@'192.168.0.%';
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grant 操作 MySQL 临时表权限。

grant create temporary tables on testdb.* to developer@'192.168.0.%';
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grant 操作 MySQL 索引权限。

grant index on testdb.* to developer@'192.168.0.%';
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grant 操作 MySQL 视图、查看视图源代码 权限。

grant create view on testdb.* to developer@'192.168.0.%'; grant show view on testdb.* to developer@'192.168.0.%';
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grant 操作 MySQL 存储过程、函数 权限。

grant create routine on testdb.* to developer@'192.168.0.%'; -- now, can show procedure status grant alter routine on testdb.* to developer@'192.168.0.%'; -- now, you can drop a procedure grant execute on testdb.* to developer@'192.168.0.%';
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    三、grant 普通 DBA 管理某个 MySQL 数据库的权限。

 

grant all privileges on testdb to dba@'localhost'
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其中,关键字 “privileges” 可以省略。

 

    四、grant 高级 DBA 管理 MySQL 中所有数据库的权限。

 

grant all on *.* to dba@'localhost'
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    五、MySQL grant 权限,分别可以作用在多个层次上。

 

1. grant 作用在整个 MySQL 服务器上:

grant select on *.* to dba@localhost; -- dba 可以查询 MySQL 中所有数据库中的表。 grant all on *.* to dba@localhost; -- dba 可以管理 MySQL 中的所有数据库
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2. grant 作用在单个数据库上:

grant select on testdb.* to dba@localhost; -- dba 可以查询 testdb 中的表。
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3. grant 作用在单个数据表上:

grant select, insert, update, delete on testdb.orders to dba@localhost;
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4. grant 作用在表中的列上:

grant select(id, se, rank) on testdb.apache_log to dba@localhost;
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5. grant 作用在存储过程、函数上:

grant execute on procedure testdb.pr_add to 'dba'@'localhost' grant execute on function testdb.fn_add to 'dba'@'localhost'
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    六、查看 MySQL 用户权限

 

查看当前用户(自己)权限:

show grants;
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查看其他 MySQL 用户权限:

show grants for dba@localhost;
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    七、撤销已经赋予给 MySQL 用户权限的权限。

 

revoke 跟 grant 的语法差不多,只需要把关键字 “to” 换成 “from” 即可:

grant all on *.* to dba@localhost; revoke all on *.* from dba@localhost;
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    八、MySQL grant、revoke 用户权限注意事项

 

1. grant, revoke 用户权限后,该用户只有重新连接 MySQL 数据库,权限才能生效。

2. 如果想让授权的用户,也可以将这些权限 grant 给其他用户,需要选项 “grant option“

grant select on testdb.* to dba@localhost with grant option;
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这个特性一般用不到。实际中,数据库权限最好由 DBA 来统一管理。

 

    九、应用实例:新建用户并只付给指定数据库操作权限.

 

//下面为创建lamfire用户,远程登录密码为123456,并分配其对lamfireDB数据库完全操作权限
 

CREATE USER 'lamfire'@'%' IDENTIFIED BY '123456';

GRANT USAGE ON * . * TO 'lamfire'@'%' IDENTIFIED BY '123456'  ;

CREATE DATABASE IF NOT EXISTS `lamfireDB` ;

GRANT ALL PRIVILEGES ON `lamfireDB` . * TO lamfire@'%';

 FLUSH PRIVILEGES;

 

十、查看系统用户表. 

<span>use mysql; select * from user;</span> 
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