$ub = new UpdateBuilder();
$ub
->update('users')
->set('password', md5('password'))
->where('id = ?');
public function set($key, $value)
{
$this->setParameter(null, $value, \PDO::PARAM_STR);
$key = Db::quoteIdentifier($key);
return $this->addQueryPart('set', $key . ' = ?', true);
}