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ho man

Subject: how to list distinct value?
Author: ho man
Date: 13 Mar 2009 02:52 AM

Good morning all,
I create an xml sitemap from http://www.xml-sitemaps.com/ and import to db2

- <urlset>
- <url>
<loc>http://www.comp.polyu.edu.hk/</loc>
<priority>1.00</priority>
<lastmod>2009-02-13T01:22:18-00:00</lastmod>
<changefreq>daily</changefreq>
</url>
- <url>
<loc>http://www.comp.polyu.edu.hk/contentpage.php-id=20060522151723-lang=e</loc>
<priority>0.80</priority>
<changefreq>daily</changefreq>
</url>
- <url>
<loc>http://www.comp.polyu.edu.hk/contentpage.php-id=20070823112439-lang=e</loc>
<priority>0.64</priority>
<changefreq>daily</changefreq>
</url>
.
.
.
- <url>
<loc>http://www.comp.polyu.edu.hk/icwl2005/icwl-cfp-web.pdf</loc>
<priority>0.41</priority>
<changefreq>daily</changefreq>
</url>
- <url>
<loc>http://www.comp.polyu.edu.hk/conference/2005/icwl2005-all.pdf</loc>
<priority>0.41</priority>
<changefreq>daily</changefreq>
</url>
- <url>
<loc>http://www.comp.polyu.edu.hk/conference/PRDC05/cfp.htm</loc>
<priority>0.41</priority>
<lastmod>2005-05-12T06:36:43-00:00</lastmod>
<changefreq>daily</changefreq>
</url>
- <url>
<loc>http://www.comp.polyu.edu.hk/conference/PRDC05/The Program for PRDC05.htm</loc>
<priority>0.41</priority>
<lastmod>2005-12-08T14:08:43-00:00</lastmod>
<changefreq>daily</changefreq>
</url>
</urlset>

I want to use xquery to list the website path which have the word "conference" in the path and return only the distinct path if the same path have more than one file.

For example:
The above list have three path that contain the word "conference", but two of them have the same path

http://www.comp.polyu.edu.hk/conference/2005/
http://www.comp.polyu.edu.hk/conference/PRDC05/

I know the contains function which return the list of path which contain the word "conference", but I don't know what the next step to do...

xquery
for $tmp in db2-fn:xmlcolumn('SITEMAP_TABLE.SITEMAP_XML')/urlset/url
where ($tmp/loc) [contains(.,"conference")]
return data($tmp/loc);

John Bampton

Subject: how to list distinct value?
Author: John Bampton
Date: 13 Mar 2009 02:54 AM

use the distinct-values function

ho man

Subject: how to list distinct value?
Author: ho man
Date: 13 Mar 2009 03:24 AM
Originally Posted: 13 Mar 2009 02:58 AM

but the path have the file name at the end, so the distinct value not work

Minollo I.

Subject: how to list distinct value?
Author: Minollo I.
Date: 13 Mar 2009 04:51 PM

Something like this:

declare function local:get-path($url as xs:string) as xs:string {
let $urlComponents := tokenize($url, "/")
return string-join(subsequence($urlComponents, 1, count($urlComponents)-1), "/")
};

let $input :=
<urlset>
...
</urlset>
for $url in distinct-values($input//url/loc[contains(., "/conference/")]/local:get-path(.))
return $url

ho man

Subject: how to list distinct value?
Author: ho man
Date: 14 Mar 2009 02:23 PM

It work.
Thank for your help.

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