INSERT INTO mysql.user
SET user = 'root',
    host = 'localhost',
    password = Password('whatevernewpassword'),
    Select_priv = 'y',
    Insert_priv = 'y',
    Update_priv = 'y',
    Delete_priv = 'y',
    Create_priv = 'y',
    Drop_priv = 'y',
    Reload_priv = 'y',
    Shutdown_priv = 'y',
    Process_priv = 'y',
    File_priv = 'y',
    Grant_priv = 'y',
    References_priv = 'y',
    Index_priv = 'y',
    Alter_priv = 'y',
    Show_db_priv = 'y',
    Super_priv = 'y',
    Create_tmp_table_priv = 'y',
    Lock_tables_priv = 'y',
    Execute_priv = 'y',
    Repl_slave_priv = 'y',
    Repl_client_priv = 'y',
    Create_view_priv = 'y',
    Show_view_priv = 'y',
    Create_routine_priv = 'y',
    Alter_routine_priv = 'y',
    Create_user_priv = 'y',
    Event_priv = 'y',
    Trigger_priv = 'y',
    Create_tablespace_priv = 'y';