How can I change root username in MySQL

Question

I'm running MySQL in Ubuntu, default installation.

How can I change the username from

root

to another one, let's say

admin

? Preferably from the command line.

Answer 1

After connecting to MySQL run

use mysql;
update user set user='admin' where user='root';
flush privileges;

That's it.

If you also want to change password run

update user set password=PASSWORD('new password') where user='admin';

before flush privileges;.

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