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mysql 权限表说明

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Release: 2016-06-07 15:52:55
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MySQL服务器通过MySQL权限表来控制用户对数据库的访问,MySQL权限表存放在mysql数据库里,由mysql_install_db脚本初始化。这些MySQL权限表分别user,db,table_priv,columns_priv和host。下面分别介绍一下这些表的结构和内容: user权限表:记录允许连接到

MySQL服务器通过MySQL权限表来控制用户对数据库的访问,MySQL权限表存放在mysql数据库里,由mysql_install_db脚本初始化。这些MySQL权限表分别user,db,table_priv,columns_priv和host。下面分别介绍一下这些表的结构和内容:

user权限表:记录允许连接到服务器的用户帐号信息,里面的权限是全局级的。

db权限表:记录各个帐号在各个数据库上的操作权限。

table_priv权限表:记录数据表级的操作权限。

columns_priv权限表:记录数据列级的操作权限。

host权限表:配合db权限表对给定主机上数据库级操作权限作更细致的控制。这个权限表不受GRANT和REVOKE语句的影响。

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