Article posted on Experts Exchange about XQuery outer joins

[Michael Kay]

Your conclusion is:

Xquery doesn't get close to the mature capabilities of relational 
database systems when it comes to dealing with relational data!

Well of course it doesn't. It's not designed to do that job. Data is 
naturally hierarchical, and XQuery is good at processing it in its 
hierarchical form. If you insist on artificially reducing both your 
input and output into flat tables, losing all the hierarchic structure 
in the process, then you must expect that it will be more difficult to 
manipulate.

The problem is, you're so immersed in relational thinking that you don't 
see the artificiality of it any more.

Michael Kay
Saxonica



On 21/06/2010 17:29, Andrew Webster wrote:
> Hi all,
>
> I'm after some feedback on an article I've posted at How to write an 
> XQuery that is the exact equivalent of a SQL OUTER JOIN 
> <http://www.experts-exchange.com/A_3295.html>
>
> It would be great to find out if I've done something useful, or if 
> I've managed to miss something simple that would have achieved the 
> same result!
>
> Regards,
>
> Andrew Webster
>
> Cell: (205) 706-3371
> Fax: (866) 567-8013
> Skype: andrewmwebster
>
> Check Tungle <http://tungle.me/AndrewWebster> for my free/busy info
> Want a personal email like mine? Click here <http://hover.com/AWebster>
>
>
>
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