How i can use entity_metadata_wrapper for new database entry and update data in Drupal 7
Its simple

// $nid - nid of node you want to udate
$node = node_load($nid);
$entity_wrapper = entity_metadata_wrapper('node',$node);
...
$entity_wrapper-&gt;field_eventbrite-&gt;set($row-&gt;eid);          
$entity_wrapper-&gt;field_venue-&gt;set($row-&gt;name);
$entity_wrapper-&gt;save();