MySQL权限篇之PROCESS

PROCESS权限，可以执行解释执行计划操作的权限（需要额外授予表上的select权限）。

当然也隐式激活很多其他操作。比如show engines，show processlist等。

比如：

mysql> show grants for 'ut01'@'%';
+----------------------------------+
| Grants for ut01@%                |
+----------------------------------+
| GRANT USAGE ON *.* TO 'ut01'@'%' |
+----------------------------------+
1 row in set (0.00 sec)


mysql> grant process on test.* to 'ut01'@'%';
ERROR 1221 (HY000): Incorrect usage of DB GRANT and GLOBAL PRIVILEGES
mysql> grant process on *.* to 'ut01'@'%';
Query OK, 0 rows affected (0.05 sec)


mysql> show grants for 'ut01'@'%';
+------------------------------------+
| Grants for ut01@%                  |
+------------------------------------+
| GRANT PROCESS ON *.* TO 'ut01'@'%' |
+------------------------------------+
1 row in set (0.00 sec)


mysql> alter user 'ut01'@'%' identified by '20127163';
Query OK, 0 rows affected (0.05 sec)

mysql> grant select on test.* to 'ut01'@'%';
Query OK, 0 rows affected (0.05 sec)


mysql>

那么该用户：

C:\Users\Administrator>mysql -u'ut01'
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 54
Server version: 5.7.11-log MySQL Community Server (GPL)


Copyright (c) 2000, 2016, 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> use test
Database changed
mysql> explain select * from test.sys_menu;
+----+-------------+----------+------------+------+---------------+------+---------+------+------+----------+-------+
| id | select_type | table    | partitions | type | possible_keys | key  | key_len | ref  | rows | filtered | Extra |
+----+-------------+----------+------------+------+---------------+------+---------+------+------+----------+-------+
|  1 | SIMPLE      | sys_menu | NULL       | ALL  | NULL          | NULL | NULL    | NULL |    1 |   100.00 | NULL  |
+----+-------------+----------+------------+------+---------------+------+---------+------+------+----------+-------+
1 row in set, 1 warning (0.00 sec)


mysql> show engines;
+--------------------+---------+----------------------------------------------------------------+--------------+------+------------+
| Engine             | Support | Comment                                                        | Transactions | XA   | Savepoints |
+--------------------+---------+----------------------------------------------------------------+--------------+------+------------+
| InnoDB             | DEFAULT | Supports transactions, row-level locking, and foreign keys     | YES          | YES  | YES        |
| MRG_MYISAM         | YES   &nb