What to do if you forget your root password

MySQL is the most popular relational database management system. In terms of WEB applications, MySQL is one of the best RDBMS application software. In this introduction, you will quickly learn how to retrieve the MySQL root password after forgetting it, and use the MySQL database easily.

Under Windows, if the MySQL password forgets the root password and cannot log in, as shown in the figure below,

At this time What should I do? I can only reset the root password.

1. Open the task manager to check whether the MySql service is started. If it is started, stop it first

2. Find my in the MySql directory. ini file

3. Open the file, find [mysqld] inside, and then add skip-grant-tables under it. After adding Save the file

4. Re-enter the task manager and start the MySQL service

5. Run cmd as administrator

Note that cmd must be run as an administrator in this way. You cannot use win R to enter cmd to run, otherwise "'mysql' is not an internal or external command, nor is it runnable." Program or batch file" error.

6. Enter mysql -u root -p to log in without a password. When password: appears, just press Enter to enter.

7. Enter the mysql database:

mysql> use mysql;Database changed

8. Set a new password for the root user: mysql> update user set password=password(" 123456") where user="root";

Prompt: Query OK, 1 rows affected (0.04 sec)Rows matched: 1 Changed: 1 Warnings: 0

PS: 123456 is a new password. Users can change it to their own password according to their own needs

9. Open the previous my.ini file and add the line "skip-grant-tables" Delete

10. Open the task manager and restart the MySQL service. Then we can connect to the database using the password "123456" we just set.

Mysql root password was modified successfully!

Additional explanation! ! !

The last step is update user set password=password("root") where user="root"; only applies to version 5.5;

5.7 version needs to be the first Change the password field to authentication_string;

The result is update user set authentication_string=password("123456") where user="root"

Related learning recommendations: mysql tutorial (video)

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