Mysql撤销特权不影响现有的连接

Question

I have permission for creation and drop database option for a user and one of user connected with mysql and creating/droping db's and still connection exist with db through workbench. Now i am revoking drop option from user but its not working with already connected user. I want to revoke immediately from all user even if they are connected or not.

Answer 1

If you revoked the privileges via update statements on the privilege tables, make sure you execute this thereafter:

FLUSH PRIVILEGES;

Then you can force a disconnect by killing the user's threads. Do

SHOW PROCESSLIST;

and look for every Id where User column is the user you want to revoke the privileges from. Then kill the threads.

KILL <whatever Id you noticed from show processlist>;