Modify the root password of MySQL

modify mysql Of root password

Method 1： use SET PASSWORD command

Log in first MySQL.
Format ：mysql> set password for user name @localhost = password(‘ New password ’);
Example ：mysql> set password for [email protected] = password(‘123’);

Method 2： use mysqladmin

Format ：mysqladmin -u user name -p Old password password New password
Example ：mysqladmin -uroot -p123456 password 123

Method 3： use UPDATE Direct editing user surface

Log in first MySQL.
mysql> use mysql;
mysql> update user set password=password(‘123’) where user=‘root’ and host=‘localhost’;
mysql> flush privileges;

Method 4： Forgetting root When it comes to passwords , It can be like this

With windows For example ：

1. Close running MySQL service .
2. open DOS window , go to mysql\bin Catalog .
3. Input mysqld --skip-grant-tables enter .–skip-grant-tables It means to start MySQL Skip authority list authentication when serving .
4. Open another one DOS window （ Because that one DOS The window can no longer move ）, go to mysql\bin Catalog .
5. Input mysql enter , If it works , Will appear MySQL Prompt >.
6. Connect to permission database ： use mysql; .
7. Change password ：update user set password=password(“123”) where user=“root”;（ Don't forget to add a semicolon at the end ） .
8. Refresh the permissions （ Steps must be taken ）：flush privileges;　.
9. sign out quit.
10. Log off the system , Enter again , Use the user name root And the new password you just set 123 Sign in .