Hi Nachiketa,
The conflicting updates means you are updating/deleting the same node multiple times. So, the approach isn’t necessarily bad, but there do is a logical error in your code. Could be a copy/paste error, but you are iterating over doc()//b, but deleting $m/citation? You are also using positional indexing. Why not simply iterate over the nodes themselves? That is usually much more convenient. Apart from this, the approach to use map:map as suggested by Gary is likely to be one of the fastest solutions. Whether doing a doc-insert or individual node updates is fastest depends, but if you are already touching most of the XML this way, then doing a full update is likely equally fast. Perhaps even faster.. Cheers, Geert *Van:* [email protected] [mailto: [email protected]] *Namens *Nachiketa Kulkarni *Verzonden:* donderdag 12 december 2013 14:34 *Aan:* [email protected] *Onderwerp:* [MarkLogic Dev General] deleteing duplicate elements from XMLs in Marklogic Hi, I have an xml in the below form: <a> <b> <c href="input1"/> <c href="input2"/> <c href="input1"/> <c href="input1"/> <c href="input1"/> <c href="input3"/> <c href="input3"/> <c href="input1"/> <c href="input1"/> <c href="input1"/> </b> <b> <c href="input1"/> <c href="input2"/> <c href="input1"/> <c href="input1"/> <c href="input1"/> </b> </a> I want to retain the <c> elements with unique @href. The duplicate entries should be removed. Thus, the output should be: <a> <b> <c href="input1"/> <c href="input2"/> <c href="input3"/> </b> <b> <c href="input1"/> <c href="input2"/> </b> </a> I have written the below xquery for the same: declare namespace functx = "http://www.functx.com";; declare function functx:is-node-in-sequence ( $var2ode as node()? , $seq as node()* ) as xs:boolean { some $var2odeInSeq in $seq satisfies $var2odeInSeq is $var2ode } ; for $var1 in doc("/abc.xml")//b let $count := fn:count($var1/c) for $var2 in 1 to $count where ($count > 1 and fn:not(($var2 + 1) >= $count)) return for $var3 in ($var2 + 1) to $count where functx:is-node-in-sequence($m/citation[$var3], $m/citation) return xdmp:node-delete($m/c [$var3]) But, I am getting *xdmp:conflictingupdates* exception. Please suggest an alternative to get the desired output. Regards, Nachiketa Kulkarni **************** CAUTION - Disclaimer ***************** This e-mail contains PRIVILEGED AND CONFIDENTIAL INFORMATION intended solely for the use of the addressee(s). If you are not the intended recipient, please notify the sender by e-mail and delete the original message. Further, you are not to copy, disclose, or distribute this e-mail or its contents to any other person and any such actions are unlawful. This e-mail may contain viruses. Infosys has taken every reasonable precaution to minimize this risk, but is not liable for any damage you may sustain as a result of any virus in this e-mail. You should carry out your own virus checks before opening the e-mail or attachment. Infosys reserves the right to monitor and review the content of all messages sent to or from this e-mail address. Messages sent to or from this e-mail address may be stored on the Infosys e-mail system. ***INFOSYS******** End of Disclaimer ********INFOSYS***
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