MySQL：Administering User@% Accounts（mysqluser）

MySQL is a popular open source relational database management system (RDBMS). It is used to store and manage data in a structured way. For security and privacy, MySQL provides an account system that allows administrators to limit access to certain parts of the system and helps ensure authenticated access and prevent unauthorized access.

In order to administer user@% accounts in MySQL, the account holder must have an administrator role and be granted the super privilege. This requires MySQL’s root user to create a new user account, assign administrative rights and define the access permissions for this new user.

The process of creating a new user in MySQL is quite simple and straightforward. First, the root user must log into the MySQL server and execute the “CREATE USER” command. This command will create a new user who will have the rights and privileges to perform administrative tasks and access system resources.

To assign a user with administrator rights, the MySQL command “GRANT ALL” is used. This grants the user with all the privileges necessary for administrative tasks. Additionally, the root user can assign permissions to the user by executing “GRANT” commands. This will provide the user access to certain databases or tables within the MySQL server.

Finally, the root user can also revoke user@% rights and privileges on the MySQL server by executing the “REVOKE” command. This removes all the privileges granted to the user and prevents him or her from accessing or manipulating data within the MySQL server.

In summary, administering user@% accounts in MySQL involves creating a new user and assigning them with the appropriate rights and privileges. This requires the root user to execute certain commands and assign the user access to certain databases or tables. The root user can also revoke user@% rights and privileges and prevent the user from accessing or manipulating data in the MySQL server.