控制台修改mysql数据库root登陆密码

mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| test |
+--------------------+
4 rows in set (0.00 sec)

mysql> use mysql
Database changed
mysql> update user set password=PASSWORD('root') where user='root';
Query OK, 3 rows affected (0.03 sec)
Rows matched: 3 Changed: 3 Warnings: 0

mysql> flush privileges;