ERROR 1044 (42000): Access denied for user 'root'@'%' to database 'mysql'

ERROR 1044 (42000): Access denied for user 'root'@'%' to database 'mysql'是MySQL数据库中的错误提示，表示用户'root'@'%'被拒绝访问数据库'mysql'的权限。

解决这个问题的方法是通过执行一系列的MySQL命令来重新设置用户权限。首先，需要进入MySQL控制台，可以使用以下命令：mysql -u root -p，然后输入root用户的密码即可进入控制台。

接下来，可以尝试创建一个新的用户并授予相应的权限。可以执行如下命令：
CREATE USER 'root'@'%' IDENTIFIED BY 'password';（将password替换为您自己的密码）
GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' WITH GRANT OPTION;
FLUSH PRIVILEGES;（刷新权限表）

执行完以上命令后，再次尝试访问数据库'mysql'，应该就不会再出现Access denied的错误了。 <span class="em">1</span><span class="em">2</span><span class="em">3</span>
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