service mysql stop

mysqld_safe –skip-grant-tables &

mysql -u root



USE mysql

UPDATE user SET Password = PASSWORD('password1234')

WHERE Host = '%' AND User = 'root';

FLUSH PRIVILEGES;

service mysql start



Then log in with root like this: mysql -p

and write the password

DB list via SQL: show databases;

Delete a database via SQL: drop <nome_db>;

Create database via SQL: create database <nome_db>;