MySQL Multiple Methods of Modifying root Password of Recommendation

Method 1: Use the SET PASSWORD command

MySQL -u root
 　　 mysql> SET PASSWORD FOR 'root'@'localhost' = PASSWORD('newpass');

Method 2: Use mysqladmin

 　　 mysqladmin -u root password "newpass"

If root has already set a password, use the following method

mysqladmin -u root password oldpass "newpass"

Method 3: user table is edited directly with UPDATE

 　 mysql -u root
  　  　  mysql> use mysql;
  　  　  mysql> UPDATE user SET Password = PASSWORD('newpass') WHERE user = 'root';
  　  　  mysql> FLUSH PRIVILEGES;

When the root password is lost, you can do this

mysqld_safe --skip-grant-tables&
 　　 mysql -u root mysql
 　　 mysql> UPDATE user SET password=PASSWORD("new password") WHERE user='root';
 　　 mysql> FLUSH PRIVILEGES;