How Do I Restore Full Privileges to a MySQL Root User After Accidentally Restricting Them?

Problem:

Oops! I just restricted the privileges of the MySQL root user, barring it from altering tables. How do I restore this user to its former glory, with absolute privileges reinstated?

Solution:

Let's take this step by step:

• Double-Check:
  Start by verifying that you indeed removed the required privileges. Run the following command:

  SELECT * FROM mysql.user WHERE User = 'root';

  Check the Grant_priv and Super_priv columns.

• Simple Fix:
  Attempt to grant all privileges using this command:

  GRANT ALL ON *.* TO 'root'@'localhost';

• Fallback Option:
  If the above doesn't restore the privileges, restart MySQL with the --skip-grant-tables option. Then, connect to the server with:

  mysql

  Issue these commands:

  UPDATE mysql.user SET Grant_priv='Y', Super_priv='Y' WHERE User='root';
  FLUSH PRIVILEGES;

• Verify the Reset:
  Run the privilege verification query again to ensure the root user's powers have been restored.
• Additional Troubleshooting:
  If the steps mentioned above fail, you may need to check the MySQL logs or seek further assistance from the MySQL documentation or community forums.

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