title: How can I make a "where" query using the select and order options?
body: <p>How can I make a "<code>where</code>" query using the <code>select</code> and <code>order</code> options?</p>
  
  <p>Like this:</p>
  
  <pre><code>Shipment.where(:invoice_id =&gt; nil)
  </code></pre>
  
  <p>To use:</p>
  
  <pre><code>Shipment.find(:all, :order =&gt; "file_number", :select =&gt; "id, file_number")
  </code></pre>