在使用mysql数据库经常都会遇到这么一个问题，其它用户定义的存储过程，现在使用另一个用户却无法修改或者删除等；正常情况下存储过程的定义者对它有修改、删除的权限；但是其它的用户就要相于的授权，不然无法查看、调用；
mysql 中使用用户A创建一个存储过程,现在想通过另一个用户B来修改A创建的存储过程；以下记录就是基于这样的情况产生的；
用户A对OTO3库的权限：
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)
用户B的权限：
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)
以用户B的身份登陆Mysql操作；
[root@mysql ~]# mysql -h10.0.10.110 -uswper -p123456
查存储过程列表时就提示没有权限了：
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身份给B用户添加一个查看存储过程的权限：
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用户里查看存储过程列表：
mysql> select `name` from mysql.proc where db = 'OTO3' and `type` = 'PROCEDURE'; +------------------------+ | name | +------------------------+ | proc_cs | +------------------------+ 1 rows in set (0.00 sec)
此时发现多了一个mysql库，但只有对mysql.proc有查询权限：
mysql> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | OTO3 | | mysql | +--------------------+ 3 rows in set (0.00 sec)
mysql库中只有一个表：proc
mysql> use mysql mysql> show tables; +-----------------+ | Tables_in_mysql | +-----------------+ | proc | +-----------------+ 1 row in set (0.00 sec)
同样也可以看到存储过程的详细信息：
mysql> show create procedure proc_cs\G
*************************** 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
尝试修改存储过程的配置：
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'
为了方便查看在Navicat工具上尝试修改存储过程，在保存的时候报如下权限问题：
1227 -Access denied;you need(at least one of)the SUPER privilege(s) for this operation
尝试添加一个存储过程，报权限信息：
1044 - Access denied for user ‘b'@'%' to database ‘OTO3'
这里表示b用户没有对OTO3有授权存储过程的修改权限；
以B用户尝试调用一下存储过程：
Procedure execution failed
1370 - execute command denied to user ‘b'@'%' for routine ‘OTO3.proc_cs'
这里很明显连运行权限也没有；
尝试删除原有的a用户定义的存储过程，也会报权限信息，如下：
1370 - alter routine command denied to user ‘b'@'%' for routine ‘OTO3.proc_cs'
可以看出B用户连调用存储过程的权限都没有，这里先加入执行权限：
接下来添加一个执行存储过程的权限：
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)
再次执行一下存储过程，发现成功了；
时间: 0.080ms
Procedure executed successfully
受影响的行: 0
那再添加一下创建添加存储过程的权限：
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)
上面添加权限后就可以创建存储过程了;
CREATE DEFINER=`b`@`%` PROCEDURE `aaaa`() BEGIN #Routine body goes here... SELECT * from mysql.user; END
但是自己创建的都无法删除；
1370 - alter routine command denied to user ‘b'@'%' for routine ‘OTO3.aaaa'
接下来再添加一个修改的权限，也可以删除的哦；
mysql> grant alter ROUTINE on OTO3.* to 'b'@'%'; Query OK, 0 rows affected (0.01 sec)
查看用户权限
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权限后就可以对OTO3所有的存储过程有删除权限[自己定义的增、删、改]，别人定义的可以删除，但是还不能修改；修改别人定义的存储过程会有如下提示：
1227 - Access denied; you need (at least one of)the SUPER privilege(s) for this operation
这里说明一下这个SUPER权限在哪里？通过查看用户权限原来在这里：
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: 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: *CCB4F88E945E0E14F9BEB093EB797BB0BDBFA175
password_expired: N
password_last_changed: 2017-03-06 11:37:35
password_lifetime: NULL
account_locked: N
1 row in set (0.00 sec)
尝试添加一下这个SUPER权限看看：
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)
不能对指定的库执行这个权限，因为SUPER为全局的就是整个mysql的权限；
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)
再次检查时会发现 Super_priv: Y 变化了；再修改一下别人定义的存储过程；
mysql> select * from mysql.user where user='b'\G
查看所有数据库，发现mysql库只有一张proc表有读取的权限，SUPER并非我所想象中那么强大；
mysql> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | OTO3 | | mysql | +--------------------+ 3 rows in set (0.00 sec)
仔细观看会发现执行语句：
mysql> select * from mysql.user where user='b'\G
可以看到有 Create_routine_priv: N和 Alter_routine_priv: N 这两个明显就是对存储过程的权限嘛，能不能不用SUPER而使用这两个权限呢？
回收一下这个SUPER权限；
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)
查看用户b权限
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)
发现还是报相同的权限问题：
1227 - Access denied; you need (at least one of)the SUPER privilege(s) for this operation
执行上面权限后发现，可以看到其它的系统库：[例如sys库也有存储过程，由于这两个权限是全局的]
mysql> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | OTO3 | | mysql | | performance_schema | | sys | | test | +--------------------+ 6 rows in set (0.00 sec)
这两个权限更大，连系统库sys中的存储过程都能看到，甚至修改删除，非常危险；决定再次回收权限
create routine,alter routine； mysql> revoke create routine,alter routine on *.* from 'b'@'%';
还是使用SUPER权限比较安全；
通过上面的测试得出以下结论：
简来说用户A在数据库OTO3中定义了一个存储过程，现在想用用户B来执行、修改存储过程,需要对用户B添加以下权限：
GRANT SELECT ON MYSQL.PROC TO 'B'; GRANT EXECUTE, CREATE ROUTINE, ALTER ROUTINE ON `OTO3`.* TO 'B'; GRANT SUPER ON *.* TO 'B';
所以用户B的最基本的权限：
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，对于Mysql中以另的用户修改其它人定义的存储过程权限也就非常的显白了；
如果不是以另一个用户身份调用存储过程，可以使用root权限修改存储过程的定义者; 这样就等于linux里的所有者权限变更了；
update mysql.proc set DEFINER='b'@'%' WHERE NAME='proc_cs' AND db='OTO3';
