$operations = array();
    $items = array();
    $limit = 100;
    $i = 0;

    $regs = db_query("SELECT * FROM {table_import_apunte} WHERE field_processed = :processed", array(':processed' => 0));

foreach ($regs as $row) {
          $row =  (array) $row;
          if ($i < $limit) {
            $items[] = $row;
            $i += 1;
          } else {
            $operations[] = array('csvImporter_create_nodes', array($items, 'apunte'));
            $items = array();
            $items[] = $row;
            $i = 1;
          }
        }

        if (!empty($items)) {
          $operations[] = array('csvImporter_create_nodes', array($items, 'apunte'));


        $batch = array(
          'title' => t('Importing %name table', array('%name' => drupal_strtoupper('apunte'))),
          'init_message' => t('Starting Import...'),
          'progress_message' => t('Processed @current out of @total.'),
          'error_message' => t('There was a problem importing the file.'),
          'operations' => $operations,
          'finished' => 'csvImporter_batch_finished',
        );

        batch_set($batch);
      }

while (($row = db_fetch_array($regs)) !== FALSE) {
  if ($i < $limit) {
    $items[] = $row;
    $i += 1;
  } else {
    $operations[] = array('_aicia_import_batch_create_nodes', array($items, $table));
    $items = array();
    $items[] = $row;
    $i = 1;
  }
}