Tutorial on principles and applications of database system (004) -- MySQL installation and configuration: resetting MySQL login password (Windows Environment)

Database system principle and Application Tutorial （004）—— MySQL Installation and configuration ： Reset MySQL The login password （windows Environmental Science ）

If you forget root The login password of the user caused root The user can't log in MySQL, The following solutions can be adopted .

Method 1 ： start-up MySQL Skip security check when serving

1、 stop it MySQL service （ Run the command line window as an administrator ）

2、 start-up MySQL Skip security check when serving

3、 Open another window , Log in with an empty password root account number , As shown in the figure below .

4、 To reset root Account and password , As shown in the figure below .

5、 End mysqld.exe process , Restart MySQL service , Log in to the system with a new password , As shown in the figure below .

Method 2 、 modify MySQL Configuration file for

1、 stop it MySQL service , As shown in the figure below .

2、 modify MySQL Configuration file for my.ini, As shown in the figure below .

3、 stay my.ini Of documents 【MySQLd】 Partial addition ：skip-grant-tables, As shown in the figure below .

4、 preservation my.int file , start-up MySQL service , As shown in the figure below .

5、 Sign in MySQL, Log in with an empty password , As shown in the figure below .

6、 hold root The password of the account is changed to 123456

7、 stop it MySQL service

8、 modify my.ini file , Delete the content ：skip-grant-tables

9、 start-up MySQL service , Log in to the system with a new password