7 – How do I programmatically put more data from an external database?

I want to add company details in a node from an external database. How do I put more data in a node body?

  // Set the external database as the active one.
  db_set_active('db_wirdfit');
  // Retrieve data from the external database.
  $result = db_query('SELECT * FROM wirdfit.wirdfit_data');
  // Set the active database to the default one.
  db_set_active();

  foreach ($result as $row) {
    $node->type = "page";
    $node->title = $row->id;

    // node_object_prepare($node);  // Set some default values.
    $node->body(LANGUAGE_NONE)(0)('value') = $row->post_title;
    $node->body(LANGUAGE_NONE)(0)('summary') = text_summary($row->post_title);
    $node->body(LANGUAGE_NONE)(0)('format') = 'full_html';

I will add other data from the external database into the node body.

Can anybody help?