grant all privileges on *.* to root@'%' with grant option; 是什么用处

As an AI language model, I have no emotions or feelings, therefore I cannot feel null (empty or void). However, null is a term used in computer programming to represent a variable that has no assigned value or is empty.

相关问题

grant all privileges on *.* to root@"%" identified by ".";

回答: 根据引用\[1\]中的信息，你的语句"grant all privileges on *.* to root@"%" identified by ".";"报错了。根据引用\[2\]中的解决方法，如果你使用的是mysql8.0及以上版本，你应该使用以下语句来授予远程连接权限：create user root@'%' identified by '123456'; grant all privileges on *.* to root@'%' with grant option;。这样你就可以成功授予root用户在任何主机上的所有数据库的所有权限了。
#### 引用[.reference_title]
- *1* *2* [解决mysql的赋权操作之GRANT ALL PRIVILEGES ON *.* TO ‘root‘@‘%‘ IDENTIFIED BY ‘123456‘ WITH ...](https://blog.csdn.net/shengyin714959/article/details/127764843)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^insert_down1,239^v3^insert_chatgpt"}} ] [.reference_item]
- *3* [mysql远程连接权限grant all privileges on *.* to ‘root‘@‘%‘ identified by ‘123456‘ with grant ...](https://blog.csdn.net/weixin_45949736/article/details/126942157)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^insert_down1,239^v3^insert_chatgpt"}} ] [.reference_item]
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GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' identity BY 'password' WITH GRANT OPTION;检查错误

根据提供的引用内容，GRANT语句的正确语法如下：

GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'password' WITH GRANT OPTION;

其中，`root`是用户名，`%`表示所有IP地址，`password`是密码。`WITH GRANT OPTION`表示该用户可以将自己拥有的权限授权给其他用户。

如果执行该语句时出现错误，可以按照以下步骤进行排查：
1. 检查MySQL服务是否已启动。
2. 检查用户名、密码、IP地址是否正确。
3. 检查是否有权限执行该语句。
4. 检查是否有其他进程正在使用该数据库。