How can we generate dynamic ID using XQuery

[navanee]

Hi Everybody!

Could you please let me know how can I generate dynamic IDs using XQuery (like generate-id() function in XSLT).

Thanks,

Regards,
Navanee.

[sorin_ristache]

Hello,

XQuery does not provide an equivalent of generate-id() from XSLT. You can construct an ID based on the index of each of the ancestors of a given node in the list with all the siblings of that ancestor, as in the id function below:

Code: Select all

declare function local:pos($x) { 

    let $parent := $x/..

    for $child at $p in $parent/*

        return (if ($child is $x) then $p else ()) 

};



declare function local:id($x) {

   string-join(for $n in ($x/ancestor::node(),$x) return string(local:pos($n)), "/") 

};





<test>

  {

    for $node in //*

        return 

           <nameAndId> 

               { concat(name($node), "  ---  ", local:id($node) ) } 

            </nameAndId>

  }

</test>

Regards,
Sorin