how to change user password in mysql code example

Example 1: mysql change user password

SET PASSWORD FOR 'user-name'@'localhost' = PASSWORD('NEW_USER_PASSWORD');FLUSH PRIVILEGES;

Example 2: change mysql password from command line

ALTER USER 'root'@'localhost' IDENTIFIED BY 'New-Password';

Example 3: mysql change password

UPDATE mysql.user SET authentication_string=PASSWORD("rootpass") WHERE User='root';