title: Select specific data from given XML content using WHERE clasue
body: <p>I have following XML.. and I am trying to get specific data from that XML:</p>
  
  <pre><code>    &lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;html&gt;
    &lt;head&gt;
      &lt;title&gt;report&lt;/title&gt;
      &lt;model&gt;
        &lt;instance&gt;
          &lt;uploaded_form_dc8u7x id="reportform"&gt;
            &lt;formhub&gt;
              &lt;uuid/&gt;
            &lt;/formhub&gt;
            &lt;household_number/&gt;
            &lt;Survey_Name/&gt;
            &lt;photo/&gt;
            &lt;city/&gt;
            &lt;date/&gt;
            &lt;survey/&gt;
            &lt;start/&gt;
            &lt;end/&gt;
            &lt;meta&gt;
              &lt;instanceID/&gt;
            &lt;/meta&gt;
          &lt;/uploaded_form_dc8u7x&gt;
        &lt;/instance&gt;
        &lt;bind constraint=" /uploaded_form_dc8u7x/household_number  &amp;gt;= 2" nodeset="/uploaded_form_dc8u7x/household_number" required="true()" type="int"/&gt;
        &lt;bind nodeset="/uploaded_form_dc8u7x/Survey_Name" relevant=" /uploaded_form_dc8u7x/household_number  &amp;gt; 02" required="true()" type="string"/&gt;
        &lt;bind nodeset="/uploaded_form_dc8u7x/photo" required="true()" type="binary"/&gt;
        &lt;bind nodeset="/uploaded_form_dc8u7x/city" required="true()" type="select"/&gt;
        &lt;bind nodeset="/uploaded_form_dc8u7x/date" required="true()" type="dateTime"/&gt;
        &lt;bind nodeset="/uploaded_form_dc8u7x/survey" required="true()" type="select1"/&gt;
        &lt;bind preload="timestamp" preloadParams="start" nodeset="/uploaded_form_dc8u7x/start" type="dateTime"/&gt;
        &lt;bind preload="timestamp" preloadParams="end" nodeset="/uploaded_form_dc8u7x/end" type="dateTime"/&gt;
        &lt;bind calculate="concat('uuid:', uuid())" nodeset="/uploaded_form_dc8u7x/meta/instanceID" readonly="true()" type="string"/&gt;
        &lt;bind calculate="'05ef936fe45e41d1bc08474399d64191'" nodeset="/uploaded_form_dc8u7x/formhub/uuid" type="string"/&gt;
      &lt;/model&gt;
    &lt;/head&gt;
    &lt;body&gt;
      &lt;input ref="/uploaded_form_dc8u7x/household_number"&gt;
        &lt;label&gt;Household Number&lt;/label&gt;
      &lt;/input&gt;
      &lt;input ref="/uploaded_form_dc8u7x/Survey_Name"&gt;
        &lt;label&gt;Survey Name&lt;/label&gt;
      &lt;/input&gt;
      &lt;upload mediatype="image/*" ref="/uploaded_form_dc8u7x/photo"&gt;
        &lt;label&gt;photo&lt;/label&gt;
      &lt;/upload&gt;
      &lt;select ref="/uploaded_form_dc8u7x/city"&gt;
        &lt;label&gt;city&lt;/label&gt;
        &lt;item&gt;
          &lt;label&gt;pune&lt;/label&gt;
          &lt;value&gt;pune01&lt;/value&gt;
        &lt;/item&gt;
        &lt;item&gt;
          &lt;label&gt;mumbai&lt;/label&gt;
          &lt;value&gt;mumbai02&lt;/value&gt;
        &lt;/item&gt;
        &lt;item&gt;
          &lt;label&gt;ahmednagar&lt;/label&gt;
          &lt;value&gt;ahmednagar03&lt;/value&gt;
        &lt;/item&gt;
        &lt;item&gt;
          &lt;label&gt;delhi&lt;/label&gt;
          &lt;value&gt;delhi04&lt;/value&gt;
        &lt;/item&gt;
      &lt;/select&gt;
      &lt;input ref="/uploaded_form_dc8u7x/date"&gt;
        &lt;label&gt;date&lt;/label&gt;
      &lt;/input&gt;
      &lt;select1 ref="/uploaded_form_dc8u7x/survey"&gt;
        &lt;label&gt;survey&lt;/label&gt;
        &lt;item&gt;
          &lt;label&gt;raj&lt;/label&gt;
          &lt;value&gt;raj01&lt;/value&gt;
        &lt;/item&gt;
        &lt;item&gt;
          &lt;label&gt;raju&lt;/label&gt;
          &lt;value&gt;raju02&lt;/value&gt;
        &lt;/item&gt;
      &lt;/select1&gt;
    &lt;/body&gt;
  &lt;/html&gt;
  </code></pre>
  
  <p>I am trying to get label 'Mumbai' using value 'mumbai02' instead of all cities. so I am expecting the output as followos:</p>
  
  <pre><code>value      label
  -----------------
  mumbai02  mumbai
  </code></pre>
  
  <p>can we get above output from XML content using WHERE clause... </p>
  
  <p>can we only get label 'mumbai' using value 'mumbai02' ??</p>