[xquery-talk] Query Through Multiple Files

[Michael Kay]

> 
> You probably need to use an XQuery collection; however, the 
> way this works varied between products, so it would depend on 
> which XQuery implementation you were using.
> 
> It is possible to query multiple files portably if you know 
> their names 

Another way of doing it that is portable is to create a document that
contains links to the documents you want to search:

<dir>
  <file>boys.xml</file>
  <file>girls.xml</file>
  <file>men.xml</file>
  <file>women.xml</file>
</dir>

then

 for $doc in /dir/file/doc(.)
 return $doc//ap/address

You wrote:

for $read in ... where distinct-values($read) return...

It's disappointing that after all the help you were given last week you
still haven't grasped that this is nonsense. The value of $read is a single
item, and passing a single item to distinct-values has no useful effect. If
you don't understand the advice you are getting, please say so and ask for
further explanation - it's a waste of everyone's time if you ignore the
advice and just keep making the same mistake.

Michael Kay
http://www.saxonica.com/