在使用mysql數(shù)據(jù)庫經(jīng)常都會(huì)遇到這么一個(gè)問題，其它用戶定義的存儲(chǔ)過程，現(xiàn)在使用另一個(gè)用戶卻無法修改或者刪除等；正常情況下存儲(chǔ)過程的定義者對它有修改、刪除的權(quán)限；但是其它的用戶就要相于的授權(quán)，不然無法查看、調(diào)用；

mysql 中使用用戶A創(chuàng)建一個(gè)存儲(chǔ)過程,現(xiàn)在想通過另一個(gè)用戶B來修改A創(chuàng)建的存儲(chǔ)過程；以下記錄就是基于這樣的情況產(chǎn)生的；

用戶A對OTO3庫的權(quán)限：

mysql> show grants for ’a’@’%’;+---------------------------------------------------+| Grants for a@% |+---------------------------------------------------+| GRANT USAGE ON *.* TO ’a’@’%’|| GRANT ALL PRIVILEGES ON `OTO3`.* TO ’a’@’%’ |+---------------------------------------------------+2 rows in set (0.00 sec)

用戶B的權(quán)限：

mysql> show grants for ’swper’@’%’;+----------------------------------------------------------------------+| Grants for swper@% |+----------------------------------------------------------------------+| GRANT USAGE ON *.* TO ’swper’@’%’ || GRANT SELECT, UPDATE, DELETE, DROP, ALTER ON `OTO3`.* TO ’swper’@’%’ |+----------------------------------------------------------------------+2 rows in set (0.00 sec)

以用戶B的身份登陸Mysql操作；

[root@mysql ~]# mysql -h10.0.10.110 -uswper -p123456

查存儲(chǔ)過程列表時(shí)就提示沒有權(quán)限了：

mysql> select `name` from mysql.proc where db = ’OTO3’ and `type` = ’PROCEDURE’;ERROR 1142 (42000): SELECT command denied to user ’swper’@’mysql’ for table ’proc’

以root身份給B用戶添加一個(gè)查看存儲(chǔ)過程的權(quán)限：

mysql> grant select on mysql.proc to ’swper’@’%’;Query OK, 0 rows affected (0.00 sec) mysql> show grants for ’swper’@’%’;+----------------------------------------------------------------------+| Grants for swper@% |+----------------------------------------------------------------------+| GRANT USAGE ON *.* TO ’swper’@’%’ || GRANT SELECT, UPDATE, DELETE, DROP, ALTER ON `OTO3`.* TO ’swper’@’%’ || GRANT SELECT ON `mysql`.`proc` TO ’swper’@’%’ |+----------------------------------------------------------------------+3 rows in set (0.00 sec)

再回到B用戶里查看存儲(chǔ)過程列表：

mysql> select `name` from mysql.proc where db = ’OTO3’ and `type` = ’PROCEDURE’;+------------------------+| name |+------------------------+| proc_cs|+------------------------+1 rows in set (0.00 sec)

此時(shí)發(fā)現(xiàn)多了一個(gè)mysql庫，但只有對mysql.proc有查詢權(quán)限：

mysql> show databases;+--------------------+| Database |+--------------------+| information_schema || OTO3|| mysql |+--------------------+3 rows in set (0.00 sec)

mysql庫中只有一個(gè)表：proc

mysql> use mysqlmysql> show tables;+-----------------+| Tables_in_mysql |+-----------------+| proc |+-----------------+1 row in set (0.00 sec)

同樣也可以看到存儲(chǔ)過程的詳細(xì)信息：

mysql> show create procedure proc_csG*************************** 1. row *************************** Procedure: proc_cs sql_mode: STRICT_TRANS_TABLES,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION Create Procedure: CREATE DEFINER=`a`@`%` PROCEDURE `proc_cs`()BEGIN

嘗試修改存儲(chǔ)過程的配置：

mysql> ALTER PROCEDURE proc_cs MODIFIES SQL DATA SQL SECURITY INVOKER;ERROR 1370 (42000): alter routine command denied to user ’b’@’%’ for routine ’OTO3.proc_cs’

為了方便查看在Navicat工具上嘗試修改存儲(chǔ)過程，在保存的時(shí)候報(bào)如下權(quán)限問題：

1227 -Access denied;you need(at least one of)the SUPER privilege(s) for this operation

嘗試添加一個(gè)存儲(chǔ)過程，報(bào)權(quán)限信息：

1044 - Access denied for user ‘b’@’%’ to database ‘OTO3’

這里表示b用戶沒有對OTO3有授權(quán)存儲(chǔ)過程的修改權(quán)限；

以B用戶嘗試調(diào)用一下存儲(chǔ)過程：

Procedure execution failed1370 - execute command denied to user ‘b’@’%’ for routine ‘OTO3.proc_cs’

這里很明顯連運(yùn)行權(quán)限也沒有；

嘗試刪除原有的a用戶定義的存儲(chǔ)過程，也會(huì)報(bào)權(quán)限信息，如下：

1370 - alter routine command denied to user ‘b’@’%’ for routine ‘OTO3.proc_cs’

可以看出B用戶連調(diào)用存儲(chǔ)過程的權(quán)限都沒有，這里先加入執(zhí)行權(quán)限：

接下來添加一個(gè)執(zhí)行存儲(chǔ)過程的權(quán)限：

mysql> grant execute on OTO3.* to ’b’@’%’;Query OK, 0 rows affected (0.00 sec) mysql> show grants for ’b’@’%’;+-------------------------------------------------------------------------------+| Grants for b@% |+-------------------------------------------------------------------------------+| GRANT USAGE ON *.* TO ’b’@’%’ || GRANT SELECT, UPDATE, DELETE, DROP, ALTER, EXECUTE ON `OTO3`.* TO ’b’@’%’ || GRANT SELECT ON `mysql`.`proc` TO ’b’@’%’ |+-------------------------------------------------------------------------------+3 rows in set (0.00 sec)

再次執(zhí)行一下存儲(chǔ)過程，發(fā)現(xiàn)成功了；

時(shí)間: 0.080msProcedure executed successfully受影響的行: 0

那再添加一下創(chuàng)建添加存儲(chǔ)過程的權(quán)限：

mysql> grant CREATE ROUTINE on OTO3.* to ’b’@’%’;Query OK, 0 rows affected (0.00 sec)

mysql> show grants for ’b’@’%’;+-----------------------------------------------------------------------------------------------+| Grants for b@% |+-----------------------------------------------------------------------------------------------+| GRANT USAGE ON *.* TO ’b’@’%’ || GRANT SELECT, UPDATE, DELETE, DROP, ALTER, EXECUTE, CREATE ROUTINE ON `OTO3`.* TO ’b’@’%’ || GRANT SELECT ON `mysql`.`proc` TO ’b’@’%’ |+-----------------------------------------------------------------------------------------------+3 rows in set (0.00 sec)

上面添加權(quán)限后就可以創(chuàng)建存儲(chǔ)過程了;

CREATE DEFINER=`b`@`%` PROCEDURE `aaaa`()BEGIN #Routine body goes here...SELECT * from mysql.user;END

但是自己創(chuàng)建的都無法刪除；

1370 - alter routine command denied to user ‘b’@’%’ for routine ‘OTO3.aaaa’

接下來再添加一個(gè)修改的權(quán)限，也可以刪除的哦；

mysql> grant alter ROUTINE on OTO3.* to ’b’@’%’;Query OK, 0 rows affected (0.01 sec)

查看用戶權(quán)限

mysql> show grants for ’b’@’%’;+--------------------------------------------------------------------------------------------------------------+| Grants for b@% |+--------------------------------------------------------------------------------------------------------------+| GRANT USAGE ON *.* TO ’b’@’%’ || GRANT SELECT, UPDATE, DELETE, DROP, ALTER, EXECUTE, CREATE ROUTINE, ALTER ROUTINE ON `OTO3`.* TO ’b’@’%’ || GRANT SELECT ON `mysql`.`proc` TO ’b’@’%’|+--------------------------------------------------------------------------------------------------------------+3 rows in set (0.00 sec)

上面添加完alter ROUTINE權(quán)限后就可以對OTO3所有的存儲(chǔ)過程有刪除權(quán)限[自己定義的增、刪、改]，別人定義的可以刪除，但是還不能修改；修改別人定義的存儲(chǔ)過程會(huì)有如下提示：

1227 - Access denied; you need (at least one of)the SUPER privilege(s) for this operation

這里說明一下這個(gè)SUPER權(quán)限在哪里？通過查看用戶權(quán)限原來在這里：

mysql> select * from mysql.user where user=’b’G*************************** 1. row *************************** Host: % User: b 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: NCreate_tablespace_priv: N ssl_type: ssl_cipher: x509_issuer: x509_subject: max_questions: 0 max_updates: 0 max_connections: 0 max_user_connections: 0plugin: mysql_native_password authentication_string: *CCB4F88E945E0E14F9BEB093EB797BB0BDBFA175 password_expired: N password_last_changed: 2017-03-06 11:37:35 password_lifetime: NULL account_locked: N1 row in set (0.00 sec)

嘗試添加一下這個(gè)SUPER權(quán)限看看：

mysql> grant SUPER on OTO3.* to ’b’@’%’;ERROR 1221 (HY000): Incorrect usage of DB GRANT and GLOBAL PRIVILEGES mysql> grant SUPER on *.* to ’b’@’%’;Query OK, 0 rows affected (0.00 sec)

不能對指定的庫執(zhí)行這個(gè)權(quán)限，因?yàn)镾UPER為全局的就是整個(gè)mysql的權(quán)限；

mysql> show grants for ’swper’@’%’;+--------------------------------------------------------------------------------------------------------------+| Grants for swper@% |+--------------------------------------------------------------------------------------------------------------+| GRANT SUPER ON *.* TO ’swper’@’%’ || GRANT SELECT, UPDATE, DELETE, DROP, ALTER, EXECUTE, CREATE ROUTINE, ALTER ROUTINE ON `OTO3`.* TO ’swper’@’%’ || GRANT SELECT ON `mysql`.`proc` TO ’swper’@’%’|+--------------------------------------------------------------------------------------------------------------+3 rows in set (0.00 sec)

再次檢查時(shí)會(huì)發(fā)現(xiàn) Super_priv: Y 變化了；再修改一下別人定義的存儲(chǔ)過程；

mysql> select * from mysql.user where user=’b’G

查看所有數(shù)據(jù)庫，發(fā)現(xiàn)mysql庫只有一張proc表有讀取的權(quán)限，SUPER并非我所想象中那么強(qiáng)大；

mysql> show databases;+--------------------+| Database |+--------------------+| information_schema || OTO3|| mysql |+--------------------+3 rows in set (0.00 sec)

仔細(xì)觀看會(huì)發(fā)現(xiàn)執(zhí)行語句：

mysql> select * from mysql.user where user=’b’G

可以看到有 Create_routine_priv: N和 Alter_routine_priv: N 這兩個(gè)明顯就是對存儲(chǔ)過程的權(quán)限嘛，能不能不用SUPER而使用這兩個(gè)權(quán)限呢？

回收一下這個(gè)SUPER權(quán)限；

mysql> revoke super on *.* from ’b’@’%’;Query OK, 0 rows affected (0.01 sec)

再添加Alter_routine_priv，Create_routine_priv

mysql> grant alter routine,create routine on *.* to ’b’@’%’;Query OK, 0 rows affected (0.00 sec)

查看用戶b權(quán)限

mysql> show grants for ’b’@’%’;+--------------------------------------------------------------------------------------------------------------+| Grants for b@% |+--------------------------------------------------------------------------------------------------------------+| GRANT CREATE ROUTINE, ALTER ROUTINE ON *.* TO ’b’@’%’ || GRANT SELECT, UPDATE, DELETE, DROP, ALTER, EXECUTE, CREATE ROUTINE, ALTER ROUTINE ON `OTO3`.* TO ’b’@’%’ || GRANT SELECT ON `mysql`.`proc` TO ’b’@’%’|+--------------------------------------------------------------------------------------------------------------+3 rows in set (0.00 sec)

發(fā)現(xiàn)還是報(bào)相同的權(quán)限問題：

1227 - Access denied; you need (at least one of)the SUPER privilege(s) for this operation

執(zhí)行上面權(quán)限后發(fā)現(xiàn)，可以看到其它的系統(tǒng)庫：[例如sys庫也有存儲(chǔ)過程，由于這兩個(gè)權(quán)限是全局的]

mysql> show databases;+--------------------+| Database |+--------------------+| information_schema || OTO3|| mysql || performance_schema || sys|| test|+--------------------+6 rows in set (0.00 sec)

這兩個(gè)權(quán)限更大，連系統(tǒng)庫sys中的存儲(chǔ)過程都能看到，甚至修改刪除，非常危險(xiǎn)；決定再次回收權(quán)限

create routine,alter routine；mysql> revoke create routine,alter routine on *.* from ’b’@’%’;

還是使用SUPER權(quán)限比較安全；

通過上面的測試得出以下結(jié)論：

查看存儲(chǔ)過程權(quán)限：SELECT #是對mysql.proc表的權(quán)限； 執(zhí)行存儲(chǔ)過程權(quán)限：EXECUTE #是對指定數(shù)據(jù)庫的權(quán)限； 創(chuàng)建存儲(chǔ)過程權(quán)限：CREATE ROUTINE #是對指定數(shù)據(jù)庫的權(quán)限； 修改存儲(chǔ)過程權(quán)限：ALTER ROUTINE #是對指定數(shù)據(jù)庫的中自己定義的存儲(chǔ)過程； 修改別人定義的存儲(chǔ)過程權(quán)限：SUPER #是對全局整個(gè)mysql的權(quán)限；

簡來說用戶A在數(shù)據(jù)庫OTO3中定義了一個(gè)存儲(chǔ)過程，現(xiàn)在想用用戶B來執(zhí)行、修改存儲(chǔ)過程,需要對用戶B添加以下權(quán)限：

GRANT SELECT ON MYSQL.PROC TO ’B’;GRANT EXECUTE, CREATE ROUTINE, ALTER ROUTINE ON `OTO3`.* TO ’B’;GRANT SUPER ON *.* TO ’B’;

所以用戶B的最基本的權(quán)限：

mysql> show grants for ’b’@’%’;+----------------------------------------------------------------------------------------+| Grants for b@% |+----------------------------------------------------------------------------------------+| GRANT SUPER ON *.* TO ’b’@’%’ || GRANT SELECT, ALTER, EXECUTE, CREATE ROUTINE, ALTER ROUTINE ON `OTO3`.* TO ’b’@’%’ || GRANT SELECT ON `mysql`.`proc` TO ’b’@’%’ |+----------------------------------------------------------------------------------------+3 rows in set (0.00 sec)

至此，對于Mysql中以另的用戶修改其它人定義的存儲(chǔ)過程權(quán)限也就非常的顯白了；

如果不是以另一個(gè)用戶身份調(diào)用存儲(chǔ)過程，可以使用root權(quán)限修改存儲(chǔ)過程的定義者; 這樣就等于linux里的所有者權(quán)限變更了；

update mysql.proc set DEFINER=’b’@’%’ WHERE NAME=’proc_cs’ AND db=’OTO3’;

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