[MarkLogic Dev General] Conflicting updates

[Jason Hunter]

Just to clarify, the rule on conflicting updates is that all update actions you specify as part of a request should be able to be executed in any order with the same result.  If that's not true, it's a conflicting update.  There's various reasons for this, the easiest of which is that XQuery is a functional language and this is an aspect of that.

It means you can't, for example, add a node and then give it a child node.  Because that's order dependent.  Nor can you delete a node and then delete its parent.  Again, order dependent.

You very much can, however, update the same document multiple times in the same transaction, so long as you're dealing with different parts of the document so that execution order of updates isn't important.

Writing the same document multiple times in a transaction would be, as Ryan says, conflicting.

-jh-

On Oct 28, 2010, at 3:08 AM, semerau at hotmail.com wrote:

> That error usually means that two updates are being attempted on a document in the same transaction. I looked at the code and I'm not seeing two updates so I'm wondering if maybe two docs are being written with the same URI in the set of documents you are loading? 
> 
> From: Pragya_Kapoor at infosys.com
> To: general at developer.marklogic.com
> Date: Thu, 28 Oct 2010 12:11:45 +0530
> Subject: [MarkLogic Dev General] (no subject)
> 
> Hi,
>  
> I am using the attached files to manipulate the xml data and then insert in ML DB using record loader.
>  
> I am getting the following error:
> XDMP:OCNFLICTINGUPDATE
>  
> Please let me know what I am doing wrong
>  
> Thnaks,
> Pragya
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