My XML file begins like this

 
<DVD_TITLE xmlns="http://www.dvd.com" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.dvd.com
C:\DOCUME~1\homecomp\Desktop\Database\xml\dvdtitles.xsd">
<DVD>
<DVD_Title>A.I. Artificial Intelligence</DVD_Title>
<DVD_Release_Date>2002-03-05</DVD_Release_Date>
<Studio>Universal Studios</Studio>
<Rating>PG-13</Rating>
<Region_Code>1</Region_Code>
<Director>Steven Spielberg</Director>
<Starring>Haley Joel Osment</Starring>
<Starring> Jude Law</Starring>
</DVD> 

</pre><BR><BR>I am writing a simple query in QuipGui<BR><BR><pre class="ip-ubbcode-code-pre"> 
<result>
{
for $x in document("dvdtitlesa.xml")/DVD_TITLE/DVD
return 
<output>
{ $x/Starring }
</output>
}
</result> 

I do not get any results but if I remove the attributes of the root element in the XML file i.e xmlns, xmlns:xsi etc the query works fine. Am I doing anything wrong?

If I am not mistaken you should make the query like this

  <result>
{
for $x in document("dvdtitlesa.xml"/DVD/DVD_TITLE
return 
<output>
{ $x/Starring }
</output>
}
</result>

You see you have DVD_TITLE before DVD in your query and that will not work when DVD_TITLE is inside the DVD tag and not vise versa