title: Retrieval issue in Fusion Charts
body: <p>I am working on FusionCharts. </p>
  
  <p>My requirement is: I need to display stacked3d graph in that when I am generating xml for stacked3d graph, there might be chance for particular month's data won't be available.</p>
  
  <p>XML Format :</p>
  
  <pre><code>"&lt;chart palette='2'  bgColor='F0EEEE'    yAxisName='Firewalls Count'  showborder='0'            showPercentInToolTip='0' showLegend='1' showValues='0' labelStep='1' labelDisplay='WRAP'   slantLabels='0' useRoundEdges='1' numDIVLines='4'legendPosition='BOTTOM' legendCaption='Firewalls Onboarding Statistics'&gt;"+
  "&lt;categories&gt;"+
  "&lt;category label='May-14'/&gt;"+
  "&lt;category label='Apr-14'/&gt;"+
  "&lt;category label='Mar-14'/&gt;"+
  "&lt;category label='Feb-14'/&gt;"+
  "&lt;category label='Jan-14'/&gt;"+
  "&lt;category label='Dec-13'/&gt;
  &lt;/categories&gt;"+
  "&lt;dataset  seriesName='Firewalls'&gt;"+
   "&lt;set value='14' /&gt;"+
   "&lt;set value='9'  /&gt;"+
   "&lt;set value='5'  /&gt;"+
   "&lt;set value='6'  /&gt;"+
   "&lt;set value='14' /&gt;"+
   "&lt;set value='9'  /&gt;"+
   "&lt;/dataset&gt;"+
   "&lt;dataset  seriesName='OS'&gt;"+
   "&lt;set value='2' /&gt;"+
   "&lt;set value='3' /&gt;"+
   "&lt;set value='7' /&gt;"+
   "&lt;set value='5' /&gt;"+
   "&lt;set value='2' /&gt;"+
   "&lt;/dataset&gt;"+
   "&lt;dataset  seriesName='Databases'&gt;"+
   "&lt;set value='6'  /&gt;"+
   "&lt;set value='14' /&gt;"+
   "&lt;set value='5'  /&gt;"+
   "&lt;set value='6'  /&gt;"+
   "&lt;set value='14' /&gt;"+
   "&lt;set value='9'  /&gt;"+
   "&lt;/dataset&gt;"+
   "&lt;/chart&gt;"
  </code></pre>
  
  <p>In above XML For dataset OS : one set is missing.(one months data is not available in DB)</p>
  
  <p>My condition is if suppose any particular month's record is not there in
  database then how can I pass null or 0 value in that.</p>
  
  <p>Please kindly provide your valuable comments. </p>
  
  <p>Thanks,</p>