• MySQL用户权限详细汇总


    1,MySQL权限体系

    mysql 的权限体系大致分为5个层级:
    全局层级:
    全局权限适用于一个给定服务器中的所有数据库。这些权限存储在mysql.user表中。GRANT ALL ON .和REVOKE ALL ON .只授予和撤销全局权限。
    数据库层级:
    数据库权限适用于一个给定数据库中的所有目标。这些权限存储在mysql.db表中。GRANT ALL ON db_name.和REVOKE ALL ON db_name.只授予和撤销数据库权限。
    表层级:
    表权限适用于一个给定表中的所有列。这些权限存储在mysql.talbes_priv表中。GRANT ALL ON db_name.tbl_name和REVOKE ALL ON db_name.tbl_name只授予和撤销表权限。
    列层级:
    列权限适用于一个给定表中的单一列。这些权限存储在mysql.columns_priv表中。当使用REVOKE时,您必须指定与被授权列相同的列。
    子程序层级:
    CREATE ROUTINE, ALTER ROUTINE, EXECUTE和GRANT权限适用于已存储的子程序。这些权限可以被授予为全局层级和数据库层级。而且,除了CREATE ROUTINE外,这些权限可以被授予为子程序层级,并存储在mysql.procs_priv表中。

    这些权限信息存储在下面的系统表中:
    mysql.user
    mysql.db
    mysql.host
    mysql.table_priv
    mysql.column_priv
    mysql. procs_priv
    当用户连接进来,mysqld会通过上面的这些表对用户权限进行验证!

    2, 千里追踪之5表

    相对于oracle来说,mysql的特性是可以限制ip,用户user、ip地址host、密码passwd这3个是用户管理的基础,权限的细节基本在mysql.user、mysql.db、mysql.host、mysql.table_priv、mysql.column_priv这几张表就可以看到很多细节,接下来仔细分析这些表就可以知道权限的奥秘。


    <版权所有,文章允许转载,但必须以链接方式注明源地址,否则追究法律责任!>
    原博客地址: http://blog.csdn.net/mchdba/article/details/45921045
    原作者:黄杉 (mchdba)


    演示过程中需要建立用户来演示,先简单介绍下如何创建用户:
    GRANT priv_type ON database.table
    TO user[IDENTIFIED BY [PASSWORD] ‘password’]
    [,user [IDENTIFIED BY [PASSWORD] ‘password’]…]

    示例:
    GRANT SELECT, INSERT, UPDATE, DELETE ON d3307.* TO zengxiaoteng@’%’ IDENTIFIED BY ‘0523’;

    2.1db表

    2.1.1 表结构如下:

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    <CODE class="hljs objectivec">mysql> desc mysql.db;
    +-----------------------+---------------+------+-----+---------+-------+
    | Field | Type | Null | Key | Default | Extra |
    +-----------------------+---------------+------+-----+---------+-------+
    | Host | char(60) | NO | PRI | | |
    | Db | char(64) | NO | PRI | | |
    | User | char(16) | NO | PRI | | |
    | Select_priv | enum('N','Y') | NO | | N | |
    | Insert_priv | enum('N','Y') | NO | | N | |
    | Update_priv | enum('N','Y') | NO | | N | |
    | Delete_priv | enum('N','Y') | NO | | N | |
    | Create_priv | enum('N','Y') | NO | | N | |
    | Drop_priv | enum('N','Y') | NO | | N | |
    | Grant_priv | enum('N','Y') | NO | | N | |
    | References_priv | enum('N','Y') | NO | | N | |
    | Index_priv | enum('N','Y') | NO | | N | |
    | Alter_priv | enum('N','Y') | NO | | N | |
    | Create_tmp_table_priv | enum('N','Y') | NO | | N | |
    | Lock_tables_priv | enum('N','Y') | NO | | N | |
    | Create_view_priv | enum('N','Y') | NO | | N | |
    | Show_view_priv | enum('N','Y') | NO | | N | |
    | Create_routine_priv | enum('N','Y') | NO | | N | |
    | Alter_routine_priv | enum('N','Y') | NO | | N | |
    | Execute_priv | enum('N','Y') | NO | | N | |
    | Event_priv | enum('N','Y') | NO | | N | |
    | Trigger_priv | enum('N','Y') | NO | | N | |
    +-----------------------+---------------+------+-----+---------+-------+
    22 rows in set (0.02 sec)
     
    mysql></CODE>

    2.1.2分析如下:

    db表存储了所有对一个数据库的所有操作权限。创建用户的时候,都会往Host字段,User字段,Password字段录入用户信息;
    而当执行 GRANT SELECT,INSERT ON d3307.* TO u4@’%’ IDENTIFIED BY ‘u40523’;类似的授权语句的话,Select_priv和Insert_priv字段的值会变成Y其它字段仍然是N;
    当你执行了GRANT ALL ON d3307.* TO u4@’%’ IDENTIFIED BY ‘u40523’;类似的复制语句的话,后面的字段都会变成Y的值;

    2.1.3 创建单个select、insert授予权限

    创建用户:

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    <CODE class="hljs objectivec"><CODE class="hljs sql">GRANT SELECT,INSERT ON d3307.* TO user4@'192.168.52' IDENTIFIED BY 'user0523';</CODE></CODE>

    应该除了Host、db、user字段有值,除了Select_priv、Insert_priv值为Y外,其它的都是N。

    查看mysql.db表的记录正是如此,如下所示:

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    <CODE class="hljs objectivec"><CODE class="hljs sql"><CODE class="hljs mathematica">mysql> SELECT * FROM mysql.`db` where user='user4'G;
    *************************** 1. row ***************************
    Host: 192.168.52
    Db: d3307
    User: user4
    Select_priv: Y
    Insert_priv: Y
    Update_priv: N
    Delete_priv: N
    Create_priv: N
    Drop_priv: N
    Grant_priv: N
    References_priv: N
    Index_priv: N
    Alter_priv: N
    Create_tmp_table_priv: N
    Lock_tables_priv: N
    Create_view_priv: N
    Show_view_priv: N
    Create_routine_priv: N
    Alter_routine_priv: N
    Execute_priv: N
    Event_priv: N
    Trigger_priv: N
    1 row in set (0.01 sec)
     
    ERROR:
    No query specified
     
    mysql></CODE></CODE></CODE>

    2.1.4 授予ALL权限

    执行sql语句建立用户:

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    <CODE class="hljs objectivec"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs sql">GRANT ALL ON d3307.* TO dba5@'192.168.52.1' IDENTIFIED BY 'dba0523';</CODE></CODE></CODE></CODE>

    建立用户的时候,如下所示,除了Host、db、user字段外,所有的*_priv字段记录都会变成Y值,(Grant_priv仍然是N值除非加了WITH* GRANT OPTION执行GRANT ALL ON d3307.* TO dba5@’192.168.52.1’ IDENTIFIED BY ‘dba0523’ WITH GRANT OPTION ;)

    如下所示:

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    <CODE class="hljs objectivec"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs sql"><CODE class="hljs markdown">mysql> SELECT * FROM mysql.`db` where user='dba5'G;
    *************************** 1. row ***************************
    Host: 192.168.52.1
    Db: d3307
    User: dba5
    Select_priv: Y
    Insert_priv: Y
    Update_priv: Y
    Delete_priv: Y
    Create_priv: Y
    Drop_priv: Y
    Grant_priv: N
    References_priv: Y
    Index_priv: Y
    Alter_priv: Y
    Create_tmp_table_priv: Y
    Lock_tables_priv: Y
    Create_view_priv: Y
    Show_view_priv: Y
    Create_routine_priv: Y
    Alter_routine_priv: Y
    Execute_priv: Y
    Event_priv: Y
    Trigger_priv: Y
    1 row in set (0.00 sec)
     
    ERROR:
    No query specified
     
    mysql></CODE></CODE></CODE></CODE></CODE>

    2.2 user表

    2.2.1 表结构:

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    <CODE class="hljs objectivec"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs sql"><CODE class="hljs markdown">mysql> desc mysql.user;
    +------------------------+-----------------------------------+------+-----+---------+-------+
    | Field | Type | Null | Key | Default | Extra |
    +------------------------+-----------------------------------+------+-----+---------+-------+
    | Host | char(60) | NO | PRI | | |
    | User | char(16) | NO | PRI | | |
    | Password | char(41) | NO | | | |
    | Select_priv | enum('N','Y') | NO | | N | |
    | Insert_priv | enum('N','Y') | NO | | N | |
    | Update_priv | enum('N','Y') | NO | | N | |
    | Delete_priv | enum('N','Y') | NO | | N | |
    | Create_priv | enum('N','Y') | NO | | N | |
    | Drop_priv | enum('N','Y') | NO | | N | |
    | Reload_priv | enum('N','Y') | NO | | N | |
    | Shutdown_priv | enum('N','Y') | NO | | N | |
    | Process_priv | enum('N','Y') | NO | | N | |
    | File_priv | enum('N','Y') | NO | | N | |
    | Grant_priv | enum('N','Y') | NO | | N | |
    | References_priv | enum('N','Y') | NO | | N | |
    | Index_priv | enum('N','Y') | NO | | N | |
    | Alter_priv | enum('N','Y') | NO | | N | |
    | Show_db_priv | enum('N','Y') | NO | | N | |
    | Super_priv | enum('N','Y') | NO | | N | |
    | Create_tmp_table_priv | enum('N','Y') | NO | | N | |
    | Lock_tables_priv | enum('N','Y') | NO | | N | |
    | Execute_priv | enum('N','Y') | NO | | N | |
    | Repl_slave_priv | enum('N','Y') | NO | | N | |
    | Repl_client_priv | enum('N','Y') | NO | | N | |
    | Create_view_priv | enum('N','Y') | NO | | N | |
    | Show_view_priv | enum('N','Y') | NO | | N | |
    | Create_routine_priv | enum('N','Y') | NO | | N | |
    | Alter_routine_priv | enum('N','Y') | NO | | N | |
    | Create_user_priv | enum('N','Y') | NO | | N | |
    | Event_priv | enum('N','Y') | NO | | N | |
    | Trigger_priv | enum('N','Y') | NO | | N | |
    | Create_tablespace_priv | enum('N','Y') | NO | | N | |
    | ssl_type | enum('','ANY','X509','SPECIFIED') | NO | | | |
    | ssl_cipher | blob | NO | | NULL | |
    | x509_issuer | blob | NO | | NULL | |
    | x509_subject | blob | NO | | NULL | |
    | max_questions | int(11) unsigned | NO | | 0 | |
    | max_updates | int(11) unsigned | NO | | 0 | |
    | max_connections | int(11) unsigned | NO | | 0 | |
    | max_user_connections | int(11) unsigned | NO | | 0 | |
    | plugin | char(64) | YES | | | |
    | authentication_string | text | YES | | NULL | |
    | password_expired | enum('N','Y') | NO | | N | |
    +------------------------+-----------------------------------+------+-----+---------+-------+
    43 rows in set (0.10 sec)
     
    mysql>
    </CODE></CODE></CODE></CODE></CODE>

    2.2.2 分析

    存储用户记录的表,存储了用户的信息,每一次创建用户的时候,都会往这个表里录入记录,当你执行了,都会往Host字段,User字段,Password字段录入数据,但是后面的Select_priv、Insert_priv、Update_priv等字段的值,只有赋予GRANT ALL ON . TO timdba@’192.%’ IDENTIFIED BY ‘timdba0523’;类似的对所有库的操作权限的时候才会被记录成Y,否则都记录成N。

    2.2.3 创建对库所有表有操作权限的普通用户

    创建用户:

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    <CODE class="hljs objectivec"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs sql"><CODE class="hljs markdown"><CODE class="hljs sql">GRANT SELECT,UPDATE ON d3307.* TO user6@'192.168.52.1' IDENTIFIED BY 'user0523';</CODE></CODE></CODE></CODE></CODE></CODE>

    分析结果:存储在mysql.user表里面的记录当中,Host、User、Password是有值的,但是其它的Select_priv等*_priv字段值都是N。

    验证结果,去查看表里的存储记录,如下所示

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    <CODE class="hljs objectivec"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs sql"><CODE class="hljs markdown"><CODE class="hljs sql"><CODE class="hljs mathematica">mysql> SELECT * FROM mysql.user where user='user6'G;
    *************************** 1. row ***************************
    Host: 192.168.52.1
    User: user6
    Password: *A4D1F6ACEBC5D3EB0F6D33C7DCC629E8BE55B75A
    Select_priv: N
    Insert_priv: N
    Update_priv: N
    Delete_priv: N
    Create_priv: N
    Drop_priv: N
    Reload_priv: N
    Shutdown_priv: N
    Process_priv: N
    File_priv: N
    Grant_priv: N
    References_priv: N
    Index_priv: N
    Alter_priv: N
    Show_db_priv: N
    Super_priv: N
    Create_tmp_table_priv: N
    Lock_tables_priv: N
    Execute_priv: N
    Repl_slave_priv: N
    Repl_client_priv: N
    Create_view_priv: N
    Show_view_priv: N
    Create_routine_priv: N
    Alter_routine_priv: N
    Create_user_priv: N
    Event_priv: N
    Trigger_priv: N
    Create_tablespace_priv: N
    ssl_type:
    ssl_cipher:
    x509_issuer:
    x509_subject:
    max_questions: 0
    max_updates: 0
    max_connections: 0
    max_user_connections: 0
    plugin: mysql_native_password
    authentication_string:
    password_expired: N
    1 row in set (0.00 sec)
     
    ERROR:
    No query specified
     
    mysql></CODE></CODE></CODE></CODE></CODE></CODE></CODE>

    2.2.4 创建对于所有表有操作权限的用户

    创建用户:

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    <CODE class="hljs objectivec"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs sql"><CODE class="hljs markdown"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs lasso">mysql> GRANT SELECT,UPDATE ON *.* TO user7@'%' IDENTIFIED BY 'user0523';
    Query OK, 0 rows affected (0.00 sec)
     
    mysql></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE>

    分析:
    基本的Host、User、Password字段有记录值,然后grant了select和update所以关于*_priv字段中select和update字段有值为Y,其它*_priv字段值应该是N。

    查看记录结果,分享正确,如下所示:

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    <CODE class="hljs objectivec"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs sql"><CODE class="hljs markdown"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs mathematica">mysql> SELECT * FROM mysql.user where user='user7'G;
    *************************** 1. row ***************************
    Host: %
    User: user7
    Password: *A4D1F6ACEBC5D3EB0F6D33C7DCC629E8BE55B75A
    Select_priv: Y
    Insert_priv: N
    Update_priv: Y
    Delete_priv: N
    Create_priv: N
    Drop_priv: N
    Reload_priv: N
    Shutdown_priv: N
    Process_priv: N
    File_priv: N
    Grant_priv: N
    References_priv: N
    Index_priv: N
    Alter_priv: N
    Show_db_priv: N
    Super_priv: N
    Create_tmp_table_priv: N
    Lock_tables_priv: N
    Execute_priv: N
    Repl_slave_priv: N
    Repl_client_priv: N
    Create_view_priv: N
    Show_view_priv: N
    Create_routine_priv: N
    Alter_routine_priv: N
    Create_user_priv: N
    Event_priv: N
    Trigger_priv: N
    Create_tablespace_priv: N
    ssl_type:
    ssl_cipher:
    x509_issuer:
    x509_subject:
    max_questions: 0
    max_updates: 0
    max_connections: 0
    max_user_connections: 0
    plugin: mysql_native_password
    authentication_string:
    password_expired: N
    1 row in set (0.00 sec)
     
    ERROR:
    No query specified
     
    mysql></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE>

    2.3 tables_priv表

    2.3.1 查看表结构

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    <CODE class="hljs objectivec"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs sql"><CODE class="hljs markdown"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs mathematica">mysql> desc mysql.tables_priv;
    +-------------+-----------------------------------------------------------------------------------------------------------------------------------+------+-----+-------------------+-----------------------------+
    | Field | Type | Null | Key | Default | Extra |
    +-------------+-----------------------------------------------------------------------------------------------------------------------------------+------+-----+-------------------+-----------------------------+
    | Host | char(60) | NO | PRI | | |
    | Db | char(64) | NO | PRI | | |
    | User | char(16) | NO | PRI | | |
    | Table_name | char(64) | NO | PRI | | |
    | Grantor | char(77) | NO | MUL | | |
    | Timestamp | timestamp | NO | | CURRENT_TIMESTAMP | on update CURRENT_TIMESTAMP |
    | Table_priv | set('Select','Insert','Update','Delete','Create','Drop','Grant','References','Index','Alter','Create View','Show view','Trigger') | NO | | | |
    | Column_priv | set('Select','Insert','Update','References') | NO | | | |
    +-------------+-----------------------------------------------------------------------------------------------------------------------------------+------+-----+-------------------+-----------------------------+
    8 rows in set (0.00 sec)
     
    mysql>
    </CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE>

    2.3.2 分析:

    记录了对一个表的单独授权记录,只有执行grant insert on dbname.tablename to user1@’%’identified by ‘pwd’;类似的授权记录才会在这个表里录入授权信息;其中各个字段涵义如下:

    字段存储的数据
    Host字段 用户的登录ip范围
    User字段 表所在的数据库名称
    Table_name字段 授权的表的名称
    Grantor字段 执行grant建立用户的授权者
    Timestamp字段 0000-00-00 00:00:00
    Table_priv字段 所授予的操作表的权限,比如select、udate、delete等
    Column_priv字段 对这个表的某个字段单独授予的权限


    另外当赋予all在某张表上的时候,Table_priv列会多处所有关于表的授权记录,描述如下
    Select,Insert,Update,Delete,Create,Drop,References,Index,Alter,Create View,Show view,Trigger。

    2.3.3 创建单独操作这个表的用户

    创建用户:

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    <CODE class="hljs objectivec"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs sql"><CODE class="hljs markdown"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs mathematica"><CODE class="hljs lasso">mysql> GRANT INSERT,SELECT,UPDATE ON d3307.t TO user8@'192.168.52.1' IDENTIFIED BY 'dba0523';
    Query OK, 0 rows affected (0.00 sec)
     
    mysql></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE>

    分析结果:
    应该是Host、Db、User、Table_name、Grantor、Timestamp、Table_priv是有值的,但是Column_priv没有值,因为没有单独对某一个列做了授权限制的。

    查看权限,如下所示:

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    <CODE class="hljs objectivec"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs sql"><CODE class="hljs markdown"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs markdown">mysql> SELECT * FROM mysql.tables_priv where user='user8'G;
    *************************** 1. row ***************************
    Host: 192.168.52.1
    Db: d3307
    User: user8
    Table_name: t
    Grantor: root@localhost
    Timestamp: 0000-00-00 00:00:00
    Table_priv: Select,Insert,Update
    Column_priv:
    1 row in set (0.00 sec)
     
    ERROR:
    No query specified
     
    mysql></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE>

    2.3.4 单独为某个列授权

    授权语句操作:

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    <CODE class="hljs objectivec"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs sql"><CODE class="hljs markdown"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs lasso">mysql> GRANT UPDATE(created_time) ON d3307.t TO user8@'192.168.52.1';
    Query OK, 0 rows affected (0.00 sec)
     
    mysql> GRANT SELECT(uname) ON d3307.t TO user8@'192.168.52.1';
    Query OK, 0 rows affected (0.00 sec)
     
    mysql></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE>

    分析:
    单独为某个列授权,会记录在这个表的Column_priv字段里面,会记录下对单个列的授权操作记录

    查看记录:

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    <CODE class="hljs objectivec"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs sql"><CODE class="hljs markdown"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs lasso"><CODE class="hljs markdown">mysql> SELECT * FROM mysql.tables_priv where user='user8'G;
    *************************** 1. row ***************************
    Host: 192.168.52.1
    Db: d3307
    User: user8
    Table_name: t
    Grantor: root@localhost
    Timestamp: 0000-00-00 00:00:00
    Table_priv: Select,Insert,Update
    Column_priv: Select,Update
    1 row in set (0.00 sec)
     
    ERROR:
    No query specified
     
    mysql></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE>


    而且还会在另外一个权限表mysql.columns_priv留下记录单独的授权记录,如下所示:

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    <CODE class="hljs objectivec"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs sql"><CODE class="hljs markdown"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs asciidoc">mysql> SELECT * FROM mysql.columns_priv WHERE USER='user8';
    +--------------+-------+-------+------------+--------------+---------------------+-------------+
    | Host | Db | User | Table_name | Column_name | Timestamp | Column_priv |
    +--------------+-------+-------+------------+--------------+---------------------+-------------+
    | 192.168.52.1 | d3307 | user8 | t | created_time | 0000-00-00 00:00:00 | Update |
    | 192.168.52.1 | d3307 | user8 | t | uname | 0000-00-00 00:00:00 | Select |
    +--------------+-------+-------+------------+--------------+---------------------+-------------+
    2 rows in set (0.00 sec)
     
    mysql></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE>

    2.4 columns_priv表

    2.4.1 表结构如下:

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    <CODE class="hljs objectivec"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs sql"><CODE class="hljs markdown"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs asciidoc">mysql> desc mysql.columns_priv;
    +-------------+----------------------------------------------+------+-----+-------------------+-----------------------------+
    | Field | Type | Null | Key | Default | Extra |
    +-------------+----------------------------------------------+------+-----+-------------------+-----------------------------+
    | Host | char(60) | NO | PRI | | |
    | Db | char(64) | NO | PRI | | |
    | User | char(16) | NO | PRI | | |
    | Table_name | char(64) | NO | PRI | | |
    | Column_name | char(64) | NO | PRI | | |
    | Timestamp | timestamp | NO | | CURRENT_TIMESTAMP | on update CURRENT_TIMESTAMP |
    | Column_priv | set('Select','Insert','Update','References') | NO | | | |
    +-------------+----------------------------------------------+------+-----+-------------------+-----------------------------+
    7 rows in set (0.04 sec)
     
    mysql>
    </CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE>

    2.4.2 分析

    单独对某一列有操作权限的时候,会将权限信息记录在这个表里面,比如新建立一个账号GRANT UPDATE(uname) ON d3307.t TO user9@’192.168.52.%’ IDENTIFIED BY ‘user0520’; 那么就会在这个表上录入授权信息记录,重点看Column_name字段和Column_priv字段的值。

    2.4.3 实际操作

    创建用户操作:

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    <CODE class="hljs objectivec"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs sql"><CODE class="hljs markdown"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs asciidoc"><CODE class="hljs lasso">mysql> GRANT UPDATE(uname) ON d3307.t TO user9@'192.168.52.%' IDENTIFIED BY 'user0520';
    Query OK, 0 rows affected (0.00 sec)
     
    mysql></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE>

    查看结果,会在这个columns_priv表留下一条记录:

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    <CODE class="hljs objectivec"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs sql"><CODE class="hljs markdown"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs asciidoc"><CODE class="hljs lasso"><CODE class="hljs smalltalk">mysql> SELECT * FROM mysql.columns_priv WHERE USER='user9';
    +--------------+-------+-------+------------+-------------+---------------------+-------------+
    | Host | Db | User | Table_name | Column_name | Timestamp | Column_priv |
    +--------------+-------+-------+------------+-------------+---------------------+-------------+
    | 192.168.52.% | d3307 | user9 | t | uname | 0000-00-00 00:00:00 | Update |
    +--------------+-------+-------+------------+-------------+---------------------+-------------+
    1 row in set (0.00 sec)
     
    mysql></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE>

    2.5 procs_priv表

    2.5.1 表结构

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    <CODE class="hljs objectivec"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs sql"><CODE class="hljs markdown"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs asciidoc"><CODE class="hljs lasso"><CODE class="hljs smalltalk"><CODE class="hljs asciidoc">mysql> desc proxies_priv;
    +--------------+------------+------+-----+-------------------+-----------------------------+
    | Field | Type | Null | Key | Default | Extra |
    +--------------+------------+------+-----+-------------------+-----------------------------+
    | Host | char(60) | NO | PRI | | |
    | User | char(16) | NO | PRI | | |
    | Proxied_host | char(60) | NO | PRI | | |
    | Proxied_user | char(16) | NO | PRI | | |
    | With_grant | tinyint(1) | NO | | 0 | |
    | Grantor | char(77) | NO | MUL | | |
    | Timestamp | timestamp | NO | | CURRENT_TIMESTAMP | on update CURRENT_TIMESTAMP |
    +--------------+------------+------+-----+-------------------+-----------------------------+
    7 rows in set (0.04 sec)
     
    mysql></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE>

    2.6.2分析:

    procs_priv表可以对存储过程和存储函数进行权限设置。主要字段:proc_priv。

    3,创建用户

    3.1、CREATE USER创建用户

    使用CREATE USER语句创建用户,必须要拥有CREATE USER权限。其格式如下:

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    <CODE class="hljs objectivec"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs sql"><CODE class="hljs markdown"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs asciidoc"><CODE class="hljs lasso"><CODE class="hljs smalltalk"><CODE class="hljs asciidoc"><CODE class="hljs r">CREATE USER user[IDENTIFIED BY [PASSWORD] 'password'],
    [user[IDENTIFIED BY [PASSWORD] 'password']]...</CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE>

      其中,user参数表示新建用户的账户,user由用户名(User)和主机名(Host)构成;IDENTIFIED BY关键字用来设置用户的密码;password参数表示用户的密码;如果密码是一个普通的字符串,就不需要使用PASSWORD关键字。可以没有初始密码。

    例如

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    <CODE class="hljs objectivec"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs sql"><CODE class="hljs markdown"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs asciidoc"><CODE class="hljs lasso"><CODE class="hljs smalltalk"><CODE class="hljs asciidoc"><CODE class="hljs r"><CODE class="hljs sql">CREATE USER 'sys'@'%' IDENTIFIED BY 'sys';</CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE>

    执行之后user表会增加一行记录,但权限暂时全部为‘N’。

    3.2、用INSERT语句新建普通用户

    可以使用INSERT语句直接将用户的信息添加到mysql.user表。但必须拥有mysql.user表的INSERT权限。

    另外,ssl_cipher、x509_issuer、x509_subject等必须要设置值,否则INSERT语句无法执行。

    示例:
    INSERT INTO mysql.user(Host,User,Password,ssl_cipher,x509_issuer,x509_subject) VALUES(‘%’,’newuser1’,PASSWORD(‘123456’),”,”,”)
    执行INSERT之后,要使用命令:FLUSH PRIVILEGES;命令来使用户生效。

    3.3、用GRANT语句来新建普通用户

      用GRANT来创建新的用户时,能够在创建用户时为用户授权。但需要拥有GRANT权限。

      语法如下:

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    <CODE class="hljs objectivec"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs sql"><CODE class="hljs markdown"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs asciidoc"><CODE class="hljs lasso"><CODE class="hljs smalltalk"><CODE class="hljs asciidoc"><CODE class="hljs r"><CODE class="hljs sql"><CODE class="hljs r">GRANT priv_type ON database.table
    TO user[IDENTIFIED BY [PASSWORD] 'password']
    [,user [IDENTIFIED BY [PASSWORD] 'password']...]</CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE>

    priv_type:参数表示新yoghurt的权限;
    databse.table:参数表示新用户的权限范围;
    user:参数新用户的账户,由用户名和主机构成;
    IDENTIFIED BY关键字用来设置密码;
    password:新用户密码;
    PS:GRANT语句可以同时创建多个用户。.与db.*的区别在于。.对所有数据库生效,所以user表的SELECT会变为Y。而db.*user表为’N’,更改的是Db表。

    4,删除用户

    4.1 drop user删除用户

    DROP USER语句删除普通用户,需要拥有DROP USER权限。
    语法如下:

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    <CODE class="hljs objectivec"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs sql"><CODE class="hljs markdown"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs asciidoc"><CODE class="hljs lasso"><CODE class="hljs smalltalk"><CODE class="hljs asciidoc"><CODE class="hljs r"><CODE class="hljs sql"><CODE class="hljs r"><CODE class="hljs r">DROP USER user[,user]...</CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE>

    user是需要删除的用户,由用户名(User)和主机名(Host)构成。

    4.2 DELETE语句删除普通用户

    可以使用DELETE语句直接将用户的信息从mysql.user表中删除。但必须拥有对mysql.user表的DELETE权限。DELETE FROM mysql.user WHERE Host = ‘%’ AND User = ‘admin’; 删除完成后,一样要FLUSH PRIVILEGES才生效。

    5,修改用户密码

    5.1 使用mysqladmin命令来修改root用户的密码

    语法:

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    <CODE class="hljs objectivec"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs sql"><CODE class="hljs markdown"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs asciidoc"><CODE class="hljs lasso"><CODE class="hljs smalltalk"><CODE class="hljs asciidoc"><CODE class="hljs r"><CODE class="hljs sql"><CODE class="hljs r"><CODE class="hljs r"><CODE class="hljs lasso">mysqladmin -u -username -p password "new_password" </CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE>

    新密码(new_password)必须用括号括起来,单引号会报错。

    示例,修改中要输入旧的密码来验证:

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    <CODE class="hljs objectivec"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs sql"><CODE class="hljs markdown"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs asciidoc"><CODE class="hljs lasso"><CODE class="hljs smalltalk"><CODE class="hljs asciidoc"><CODE class="hljs r"><CODE class="hljs sql"><CODE class="hljs r"><CODE class="hljs r"><CODE class="hljs lasso"><CODE class="hljs asciidoc">[root@data02 ~]# mysqladmin -u timman -p password "tim" --socket=/usr/local/mysql3307/mysql.sock
    Enter password:
    [root@data02 ~]#
    [root@data02 ~]# mysql --socket=/usr/local/mysql3307/mysql.sock -utimman -ptim -e "select @@port";
    +--------+
    | @@port |
    +--------+
    | 3307 |
    +--------+
    [root@data02 ~]#</CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE>

    5.2 修改user表

    UPDATE user表的passwor字段的值,也可以达到修改密码的目的;

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    <CODE class="hljs objectivec"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs sql"><CODE class="hljs markdown"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs asciidoc"><CODE class="hljs lasso"><CODE class="hljs smalltalk"><CODE class="hljs asciidoc"><CODE class="hljs r"><CODE class="hljs sql"><CODE class="hljs r"><CODE class="hljs r"><CODE class="hljs lasso"><CODE class="hljs asciidoc"><CODE class="hljs sql">UPDATE user SET Password = PASSWORD('123') WHERE USER = 'myuser';
    FLUSH PRIVILEGES;</CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE>

    刷新后生效。

    5.3 使用SET语句来修改密码

    使用root用户登录到MySQL服务器后,可以使用SET语句来修改密码:
    修改自己的密码,不需要用户名

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    <CODE class="hljs objectivec"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs sql"><CODE class="hljs markdown"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs asciidoc"><CODE class="hljs lasso"><CODE class="hljs smalltalk"><CODE class="hljs asciidoc"><CODE class="hljs r"><CODE class="hljs sql"><CODE class="hljs r"><CODE class="hljs r"><CODE class="hljs lasso"><CODE class="hljs asciidoc"><CODE class="hljs sql"><CODE class="hljs sql">SET PASSWORD = PASSWORD("123");</CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE>

    修改其他用户密码:

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    <CODE class="hljs objectivec"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs sql"><CODE class="hljs markdown"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs asciidoc"><CODE class="hljs lasso"><CODE class="hljs smalltalk"><CODE class="hljs asciidoc"><CODE class="hljs r"><CODE class="hljs sql"><CODE class="hljs r"><CODE class="hljs r"><CODE class="hljs lasso"><CODE class="hljs asciidoc"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs ruleslanguage">SET PASSWORD FOR 'myuser'@'%'=PASSWORD("123456") FOR 用户名@主机名</CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE>

    5.4 GRANT语句来修改普通用户的密码

    使用GRANT语句修改普通用户的密码,必须拥有GRANT权限。

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    <CODE class="hljs objectivec"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs sql"><CODE class="hljs markdown"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs asciidoc"><CODE class="hljs lasso"><CODE class="hljs smalltalk"><CODE class="hljs asciidoc"><CODE class="hljs r"><CODE class="hljs sql"><CODE class="hljs r"><CODE class="hljs r"><CODE class="hljs lasso"><CODE class="hljs asciidoc"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs ruleslanguage"><CODE class="hljs sql">GRANT priv_type ON database.table TO user [IDENTIFIED BY [PASSWORD] 'password']</CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE>

    示例:

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    <CODE class="hljs objectivec"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs sql"><CODE class="hljs markdown"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs asciidoc"><CODE class="hljs lasso"><CODE class="hljs smalltalk"><CODE class="hljs asciidoc"><CODE class="hljs r"><CODE class="hljs sql"><CODE class="hljs r"><CODE class="hljs r"><CODE class="hljs lasso"><CODE class="hljs asciidoc"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs ruleslanguage"><CODE class="hljs sql"><CODE class="hljs sql">GRANT SELECT ON *.* TO 'user10'@'%' IDENTIFIED BY '123'</CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE>

    5.5 忘记用户密码的解决办法

    普通用户,直接用root超级管理员登录进去修改密码就可以了,但是如果root密码丢失了,怎么办呢?

    5.5.1 msyqld_saft方式找回密码

    停止mysql:service mysqld stop;
    安全模式启动:mysqld_safe –skip-grant-tables &
    无密码回车键登录:mysql -uroot –p
    重置密码:use mysql; update user set password=password(“”) where user=’root’ and host=’localhost’; flush privileges;
    正常启动:service mysql restart
    再使用mysqladmin: mysqladmin password ‘123456’

    5.5.2 使用普通账号来找回密码

    –>(1):有一个修改test库的用户:grant create,delete,update,insert,select on d3307.* to test@’%’ identified by ‘t1’;

    –>(2):复制user表文件到test库下并且赋予mysql用户访问权限:
    cp /home/data/mysql/data/mysql/user.* /home/data/mysql/data/test/;chown mysql.mysql /home/data/mysql/data/test/user.*

    –>(3):mysql -utest -pt1登录修改root密码:

    –>(4):将test库的user表文件覆盖 mysql库的user表文件
    cp /home/data/mysql/data/mysql/user.* /tmp/; mv /home/data/mysql/data/test/user.* /home/data/mysql/data/mysql/ ; chown mysql.mysql /home/data/mysql/data/mysql/user.*;

    –>(5):查找mysql进程号,并且发送SIGHUP信号,重新加载权限表。
    pgrep -n mysql; kill -SIGHUP 12234;

    –>(6):无密码登录,再使用mysqladmin重新设置密码。

    PS:请参考第20课的视频,那里有详细的记录整个过修改密码的过程。

    6,收回用户权限

    查看权限:

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    <CODE class="hljs objectivec"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs sql"><CODE class="hljs markdown"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs asciidoc"><CODE class="hljs lasso"><CODE class="hljs smalltalk"><CODE class="hljs asciidoc"><CODE class="hljs r"><CODE class="hljs sql"><CODE class="hljs r"><CODE class="hljs r"><CODE class="hljs lasso"><CODE class="hljs asciidoc"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs ruleslanguage"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql">SHOW GRANTS; SHOW GRANTS FOR user10@'%'; </CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE>

    或者直接执行sql命令去mysql数据库下的user表中查看存储着用户的基本权限:

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    <CODE class="hljs objectivec"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs sql"><CODE class="hljs markdown"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs asciidoc"><CODE class="hljs lasso"><CODE class="hljs smalltalk"><CODE class="hljs asciidoc"><CODE class="hljs r"><CODE class="hljs sql"><CODE class="hljs r"><CODE class="hljs r"><CODE class="hljs lasso"><CODE class="hljs asciidoc"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs ruleslanguage"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql">SELECT * FROM mysql.user WHERE USER='user10' AND HOST='%'; </CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE>

    使用revoke关键字来收回权限:

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    2
    3
    <CODE class="hljs objectivec"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs sql"><CODE class="hljs markdown"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs asciidoc"><CODE class="hljs lasso"><CODE class="hljs smalltalk"><CODE class="hljs asciidoc"><CODE class="hljs r"><CODE class="hljs sql"><CODE class="hljs r"><CODE class="hljs r"><CODE class="hljs lasso"><CODE class="hljs asciidoc"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs ruleslanguage"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs css">REVOKE priv_type[(column_list)]
    ON database.table
    FROM user[,user]</CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE>

    示例:

    1
    <CODE class="hljs objectivec"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs sql"><CODE class="hljs markdown"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs asciidoc"><CODE class="hljs lasso"><CODE class="hljs smalltalk"><CODE class="hljs asciidoc"><CODE class="hljs r"><CODE class="hljs sql"><CODE class="hljs r"><CODE class="hljs r"><CODE class="hljs lasso"><CODE class="hljs asciidoc"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs ruleslanguage"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs css"><CODE class="hljs vbnet">REVOKE EXECUTE ON d3307.* FROM user10@'%';</CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE>

    7,数据库用户划分

    7.1 普通数据管理用户:

    赋予对业务表的查询维护权限即可,授权sql如下:

    1
    <CODE class="hljs objectivec"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs sql"><CODE class="hljs markdown"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs asciidoc"><CODE class="hljs lasso"><CODE class="hljs smalltalk"><CODE class="hljs asciidoc"><CODE class="hljs r"><CODE class="hljs sql"><CODE class="hljs r"><CODE class="hljs r"><CODE class="hljs lasso"><CODE class="hljs asciidoc"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs ruleslanguage"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs css"><CODE class="hljs vbnet"><CODE class="hljs sql">GRANT SELECT, INSERT, UPDATE, DELETE ON d3307.* TO zengxiaoteng@'%' IDENTIFIED BY '0523';</CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE>

    7.2 开发人员账户:

    赋予增删改查的权限,授权sql如下:

    1
    <CODE class="hljs objectivec"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs sql"><CODE class="hljs markdown"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs asciidoc"><CODE class="hljs lasso"><CODE class="hljs smalltalk"><CODE class="hljs asciidoc"><CODE class="hljs r"><CODE class="hljs sql"><CODE class="hljs r"><CODE class="hljs r"><CODE class="hljs lasso"><CODE class="hljs asciidoc"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs ruleslanguage"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs css"><CODE class="hljs vbnet"><CODE class="hljs sql"><CODE class="hljs sql">GRANT SELECT,INSERT,DELETE,UPDATE ON d3307.* TO huyan@'%' IDENTIFIED BY '0523'; </CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE>

    授予创建、修改、删除 MySQL 数据表结构权限。

    1
    2
    3
    <CODE class="hljs objectivec"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs sql"><CODE class="hljs markdown"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs asciidoc"><CODE class="hljs lasso"><CODE class="hljs smalltalk"><CODE class="hljs asciidoc"><CODE class="hljs r"><CODE class="hljs sql"><CODE class="hljs r"><CODE class="hljs r"><CODE class="hljs lasso"><CODE class="hljs asciidoc"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs ruleslanguage"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs css"><CODE class="hljs vbnet"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql">GRANT CREATE ON d3307.* TO huyan@’192.168.52.11’;
    GRANT ALTER ON d3307.* TO huyan@’192.168.52.11’;
    GRANT DROP ON d3307.* TO huyan@’192.168.52.11’;</CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE>

    授予操作 MySQL 外键权限:

    1
    <CODE class="hljs objectivec"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs sql"><CODE class="hljs markdown"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs asciidoc"><CODE class="hljs lasso"><CODE class="hljs smalltalk"><CODE class="hljs asciidoc"><CODE class="hljs r"><CODE class="hljs sql"><CODE class="hljs r"><CODE class="hljs r"><CODE class="hljs lasso"><CODE class="hljs asciidoc"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs ruleslanguage"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs css"><CODE class="hljs vbnet"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql">GRANT REFERENCES ON d3307.* TO huyan@’192.168.52.11’;</CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE>

    授予操作 MySQL 临时表权限:

    1
    <CODE class="hljs objectivec"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs sql"><CODE class="hljs markdown"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs asciidoc"><CODE class="hljs lasso"><CODE class="hljs smalltalk"><CODE class="hljs asciidoc"><CODE class="hljs r"><CODE class="hljs sql"><CODE class="hljs r"><CODE class="hljs r"><CODE class="hljs lasso"><CODE class="hljs asciidoc"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs ruleslanguage"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs css"><CODE class="hljs vbnet"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql">GRANT CREATE TEMPORARY TABLES ON d3307.* TO huyan@’192.168.52.11’;</CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE>

    授予操作 MySQL 索引权限:

    1
    <CODE class="hljs objectivec"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs sql"><CODE class="hljs markdown"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs asciidoc"><CODE class="hljs lasso"><CODE class="hljs smalltalk"><CODE class="hljs asciidoc"><CODE class="hljs r"><CODE class="hljs sql"><CODE class="hljs r"><CODE class="hljs r"><CODE class="hljs lasso"><CODE class="hljs asciidoc"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs ruleslanguage"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs css"><CODE class="hljs vbnet"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql">GRANT INDEX ON d3307.* TO huyan@’192.168.52.11’;</CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE>

    授予操作 MySQL 视图、查看视图源代码 权限:

    1
    2
    <CODE class="hljs objectivec"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs sql"><CODE class="hljs markdown"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs asciidoc"><CODE class="hljs lasso"><CODE class="hljs smalltalk"><CODE class="hljs asciidoc"><CODE class="hljs r"><CODE class="hljs sql"><CODE class="hljs r"><CODE class="hljs r"><CODE class="hljs lasso"><CODE class="hljs asciidoc"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs ruleslanguage"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs css"><CODE class="hljs vbnet"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql">GRANT CREATE VIEW ON d3307.* TO huyan@’192.168.52.11’;
    GRANT SHOW VIEW ON d3307.* TO huyan@’192.168.52.11’;</CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE>

    授予操作 MySQL 存储过程、函数 权限:

    1
    2
    3
    <CODE class="hljs objectivec"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs sql"><CODE class="hljs markdown"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs asciidoc"><CODE class="hljs lasso"><CODE class="hljs smalltalk"><CODE class="hljs asciidoc"><CODE class="hljs r"><CODE class="hljs sql"><CODE class="hljs r"><CODE class="hljs r"><CODE class="hljs lasso"><CODE class="hljs asciidoc"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs ruleslanguage"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs css"><CODE class="hljs vbnet"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql">GRANT CREATE ROUTINE ON d3307.* TO huyan@’192.168.52.11’;
    GRANT ALTER ROUTINE ON d3307.* TO huyan@’192.168.52.11’;
    GRANT EXECUTE ON d3307.* TO huyan@’192.168.52.11’;</CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE>

    7.3 DBA人员账户

    授予普通DBA管理某个MySQL数据库(test)的权限:

    1
    <CODE class="hljs objectivec"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs sql"><CODE class="hljs markdown"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs asciidoc"><CODE class="hljs lasso"><CODE class="hljs smalltalk"><CODE class="hljs asciidoc"><CODE class="hljs r"><CODE class="hljs sql"><CODE class="hljs r"><CODE class="hljs r"><CODE class="hljs lasso"><CODE class="hljs asciidoc"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs ruleslanguage"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs css"><CODE class="hljs vbnet"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql">GRANT ALL PRIVILEGES ON test TO sysdba@'192.168.52.%';</CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE>

    授予高级 DBA 管理 MySQL 中所有数据库的权限:

    1
    <CODE class="hljs objectivec"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs sql"><CODE class="hljs markdown"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs asciidoc"><CODE class="hljs lasso"><CODE class="hljs smalltalk"><CODE class="hljs asciidoc"><CODE class="hljs r"><CODE class="hljs sql"><CODE class="hljs r"><CODE class="hljs r"><CODE class="hljs lasso"><CODE class="hljs asciidoc"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs ruleslanguage"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs css"><CODE class="hljs vbnet"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql">GRANT ALL ON *.* TO sysdba@'192.168.52.%';</CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE>

    7.4 数据分析人员只读账号

    只需要分配只读的权限:

    1
    <CODE class="hljs objectivec"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs sql"><CODE class="hljs markdown"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs asciidoc"><CODE class="hljs lasso"><CODE class="hljs smalltalk"><CODE class="hljs asciidoc"><CODE class="hljs r"><CODE class="hljs sql"><CODE class="hljs r"><CODE class="hljs r"><CODE class="hljs lasso"><CODE class="hljs asciidoc"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs ruleslanguage"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs css"><CODE class="hljs vbnet"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql">GRANT SELECT ON d3307.* TO dataquery@'192.168.52.129' IDENTIFIED BY '20150523';</CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE>

    甚至有些用户,可以只分配读取某些表列的权限,如下所示:

    GRANT SELECT ON test.* TO dataquery@’192.168.52.%’ IDENTIFIED BY ‘20150523’;
    GRANT SELECT(id,uname) ON d3307.t TO dataquery@’192.168.52.%’ ;

    示列权限登录操作:

    1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    11
    12
    13
    14
    15
    16
    17
    18
    19
    20
    21
    22
    23
    24
    25
    <CODE class="hljs objectivec"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs sql"><CODE class="hljs markdown"><CODE class="hljs sql"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs mathematica"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs lasso"><CODE class="hljs markdown"><CODE class="hljs asciidoc"><CODE class="hljs lasso"><CODE class="hljs smalltalk"><CODE class="hljs asciidoc"><CODE class="hljs r"><CODE class="hljs sql"><CODE class="hljs r"><CODE class="hljs r"><CODE class="hljs lasso"><CODE class="hljs asciidoc"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs ruleslanguage"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs css"><CODE class="hljs vbnet"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs sql"><CODE class="hljs vhdl">[root@data02 ~]# mysql --socket=/usr/local/mysql3307/mysql.sock -u dataquery -p20150523 -h192.168.52.130 -P3307
    Welcome TO the MySQL monitor. Commands END WITH ; OR g.
    Your MySQL CONNECTION id IS 18
    SERVER VERSION: 5.6.12-LOG Source distribution
     
    Copyright (c) 2000, 2013, Oracle AND/OR its affiliates. ALL rights reserved.
     
    Oracle IS a registered trademark of Oracle Corporation AND/OR its
    affiliates. Other NAMES may be trademarks of their respective
    owners.
     
    TYPE 'help;' OR 'h' FOR help. TYPE 'c' TO clear the current input statement.
     
    mysql> SELECT * FROM d3307.t;
    ERROR 1142 (42000): SELECT command denied TO USER 'dataquery'@'data02' FOR TABLE 't'
    mysql>
    mysql> SELECT id,uname FROM d3307.t;
    +----+-------+
    | id | uname |
    +----+-------+
    | 1 | a |
    +----+-------+
    1 ROW IN SET (0.00 sec)
     
    mysql></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE></CODE>

    8,权限划分一般原则

    数据库一般划分为线上库,测试库,开发库。

    8.1对于线上库:

    DBA:有所有权限,超级管理员权限
    应用程序:分配insert、delete、update、select、execute、events、jobs权限。
    测试人员:select某些业务表权限
    开发人员:select某些业务表权限
    原则:所有对线上表的操作,除了应用程序之外,都必须经由DBA来决定是否执行、已经什么时候执行等。

    8.2 测试库

    DBA:所有权限。
    测试人员:有insert、delete、update、select、execute、jobs权限。
    数据分析人员:只有select查询权限
    开发人员:有select权限。

    原则:DBA有所有权限,而且严格控制表结构的变更,不允许除了dba之外的人对测试环境的库环境进行修改,以免影响测试人员测试。所有对测试库的表结构进行的修改必须由测试人员和DBA一起审核过后才能操作。

    8.3 开发库

    DBA:所有权限
    测试人员:有库表结构以及数据的所有操作权限。
    开发人员:有库表结构以及数据的所有操作权限。
    数据分析人员:有库表结构以及数据的所有操作权限。
    这里大家可以愉快的玩耍了,只要不mysql服务不hang不downtime都OK了。

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  • 原文地址:https://www.cnblogs.com/mengyuxin/p/4893820.html
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