How to identify distinct xpath for an element that occurs in different level in XML document?

Question

For example, I want to find all the unique xpath of element in below XML. Can you please help on identifying it using xquery or any other way

<a>
<b>
<identify>Level-1</identify>
</b>
<c>
    <identify>Level-2</identify>
    <d>
        <identify>Level-3</identify>
        <e>
            <identify>Level-4-1</identify>
            <identify>Level-4-2</identify>
        </e>
        <f>
            <identify>Level-4</identify>
            <g>
                <identify>Level-5</identify>        
                <identify>Level-5-2</identify>          
            </g>
        </f
    </d>
</c>

Answer 1

Your xml is invalid, but assuming you fix it, try this (based on this):

xquery version "3.1";

declare namespace functx = "http://www.functx.com";
declare function functx:path-to-node
  ( $nodes as node()* )  as xs:string* {

$nodes/string-join(ancestor-or-self::*/name(.), '/')
 } ;

let $in-xml := 
<a>
   <b>
      <identify>Level-1</identify>
   </b>
   <c>
      <identify>Level-2</identify>
      <d>
         <identify>Level-3</identify>
         <e>
            <identify>Level-4-1</identify>
            <identify>Level-4-2</identify>
         </e>
         <f>
            <identify>Level-4</identify>
            <g>
               <identify>Level-5</identify>
               <identify>Level-5-2</identify>
            </g>
         </f>
      </d>
   </c>
</a>

return
functx:path-to-node($in-xml//*[name()="identify"])

Output:

"a/b/identify"    
"a/c/identify"    
"a/c/d/identify"   
"a/c/d/e/identify"    
"a/c/d/e/identify"    
"a/c/d/f/identify"    
"a/c/d/f/g/identify"    
"a/c/d/f/g/identify"