USE billing;

UPDATE admins
  SET
    saltedpass = 'AtAFGhepIuEaQ.dSfdJ6b.$TNfqchYY76HTh2FAgD3l4r9JFYmFr9i',
    md5pass    = NULL
  WHERE
    login          = 'administrator'
    AND md5pass    = MD5('administrator')
    AND saltedpass IS NULL;
