共计 4080 个字符，预计需要花费 11 分钟才能阅读完成。
自动写代码机器人，免费开通
怎么在 MySQL 中查询用户权限？针对这个问题，这篇文章详细介绍了相对应的分析和解答，希望可以帮助更多想解决这个问题的小伙伴找到更简单易行的方法。
介绍两种查看 MySQL 用户权限的两种方法
1、使用 MySQL grants 命令
mysql show grants for username@localhost;
+---------------------------------------------------------------------+
| Grants for root@localhost |
+---------------------------------------------------------------------+
| GRANT ALL PRIVILEGES ON *.* TO root @ localhost WITH GRANT OPTION |
+---------------------------------------------------------------------+需要注意的是：
● username 和 ip 的组合需要是在 mysql.user 表中存在的，具体可以通过 select * from mysql.user 命令查看
● ip 地址如果是通配符格式需要加引号，例如：show grants for root@ 172.%
2、使用 MySQL select 命令
mysql select * from mysql.user where user= root and host= localhost \G;
*************************** 1. row ***************************
Host: localhost
User: root
Password: **********************
Select_priv: Y
Insert_priv: Y
Update_priv: Y
Delete_priv: Y
Create_priv: Y
Drop_priv: Y
Reload_priv: Y
Shutdown_priv: Y
Process_priv: Y
File_priv: Y
Grant_priv: Y
References_priv: Y
Index_priv: Y
Alter_priv: Y
Show_db_priv: Y
Super_priv: Y
Create_tmp_table_priv: Y
Lock_tables_priv: Y
Execute_priv: Y
Repl_slave_priv: Y
Repl_client_priv: Y
Create_view_priv: Y
Show_view_priv: Y
Create_routine_priv: Y
Alter_routine_priv: Y
Create_user_priv: Y
Event_priv: Y
Trigger_priv: Y
Create_tablespace_priv: Y
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 (0.01 sec)知识点扩展：
我们来创建一个测试账号 test，授予表层级的权限
mysql drop user test;
Query OK, 0 rows affected (0.00 sec)
mysql flush privileges;
Query OK, 0 rows affected (0.00 sec)
mysql grant all on MyDB.kkk to test@ % identified by test
Query OK, 0 rows affected (0.01 sec)
mysql
mysql show grants for test;
+-----------------------------------------------------------------------------------------------------+
| Grants for test@% |
+-----------------------------------------------------------------------------------------------------+
| GRANT USAGE ON *.* TO test @ % IDENTIFIED BY PASSWORD *94BDCEBE19083CE2A1F959FD02F964C7AF4CFC29 |
| GRANT ALL PRIVILEGES ON `MyDB`.`kkk` TO test @ % |
+-----------------------------------------------------------------------------------------------------+
2 rows in set (0.00 sec)
mysql select * from mysql.tables_priv\G;
*************************** 1. row ***************************
Host: %
Db: MyDB
User: test
Table_name: kkk
Grantor: root@localhost
Timestamp: 0000-00-00 00:00:00
Table_priv: Select,Insert,Update,Delete,Create,Drop,References,Index,Alter,Create View,Show view,Trigger
Column_priv:
1 row in set (0.01 sec)
ERROR:
No query specified
mysql br我们来创建一个测试账号 test，授予列层级的权限
mysql drop user test;
Query OK, 0 rows affected (0.00 sec)
mysql flush privileges;
Query OK, 0 rows affected (0.00 sec)
mysql grant select (id, col1) on MyDB.TEST1 to test@ % identified by test
Query OK, 0 rows affected (0.01 sec)
mysql flush privileges;
Query OK, 0 rows affected (0.00 sec)
mysql
mysql select * from mysql.columns_priv;
+------+------+------+------------+-------------+---------------------+-------------+
| Host | Db | User | Table_name | Column_name | Timestamp | Column_priv |
+------+------+------+------------+-------------+---------------------+-------------+
| % | MyDB | test | TEST1 | id | 0000-00-00 00:00:00 | Select |
| % | MyDB | test | TEST1 | col1 | 0000-00-00 00:00:00 | Select |
+------+------+------+------------+-------------+---------------------+-------------+
2 rows in set (0.00 sec)
mysql show grants for test;
+-----------------------------------------------------------------------------------------------------+
| Grants for test@% |
+-----------------------------------------------------------------------------------------------------+
| GRANT USAGE ON *.* TO test @ % IDENTIFIED BY PASSWORD *94BDCEBE19083CE2A1F959FD02F964C7AF4CFC29 |
| GRANT SELECT (id, col1) ON `MyDB`.`TEST1` TO test @ % |
+-----------------------------------------------------------------------------------------------------+
2 rows in set (0.00 sec)
mysql br关于怎么在 MySQL 中查询用户权限问题的解答就分享到这里了，希望以上内容可以对大家有一定的帮助，如果你还有很多疑惑没有解开，可以关注丸趣 TV 行业资讯频道了解更多相关知识。
向 AI 问一下细节
正文完
