mysql> select user,host,password from mysql.user where user='root' and host='mario-local-machine-1';
+------+-----------------------+-------------------------------------------+
| user | host | password |
+------+-----------------------+-------------------------------------------+
| root | mario-local-machine-1 | *F93E3CFD9E92D75CF4DE765E0A45AEC74F373C49 |
+------+-----------------------+-------------------------------------------+
1 row in set (0.00 sec)
mysql> set password for 'root'@'mario-local-machine-1' = password('bla');
ERROR 1133 (42000): Can't find any matching row in the user table
mysql>