[mysql] reset the root password of mysql

For people who often forget their passwords, password retrieval or password reset should be very important.

mysql provides a way to reset the root password, which is relatively simple and recorded here:

Idea: Add parameters when mysql starts, so that it reads the initialization file, and sets a new password in the initialization file.

 

Steps (Windows system):

1. Log in to the system as an administrator

2. Stop the MysqlServer service

3. Create a text file and add a line to the file to reset the password

For example, (mysql 5.7.6 and later)

alert user 'root'@'localhost' identified by 'MyNewPass';

mysql 5.7.5 and earlier:

set password for 'root'@'localhost' = password('MyNewPass')

4. Save the file, such as c:\mysql-init.txt

5. Open the cmd window

6. Run the following command to start mysqlserver

D:\mysql-5.6.22-winx64\bin>mysqld --init-file=c:\\mysql-init.txt

2016-05-09 11:16:43 0 [Warning] TIMESTAMP with implicit DEFAULT value is depreca

ted. Please use --explicit_defaults_for_timestamp server option (see documentati

on for more details).

After the startup is successful, delete the mysql-init.txt file.

 

Refer to the mysql documentation

http://dev.mysql.com/doc/refman/5.7/en/resetting-permissions.html