[xquery-talk] SQL Server 2005

[Frank Cohen]

On Jan 21, 2006, at 11:46 PM, Ronald Bourret wrote:

> Frank Cohen wrote:
>
>>  I'm
>> working on a performance and scalability study that among other   
>> things compares performance of native XML DB tools to relational   
>> tools that will back up a critique.
>
> I'm curious about the data set you'll use for this.
>
> As a general rule, it seems that the use cases for XML-enabled  
> databases and native XML databases are separate. In particular, the  
> general rule of thumb is that, if the data easily maps to the  
> relational model, then do that. If it doesn't, start thinking about  
> using the XML data model directly.
>
> And yes, I know that a lot of real-world cases mix relational and  
> XML data, but even that still fits the above rule -- shred into the  
> relational model until you hit something that doesn't fit (like a  
> prose description of a part) and then store that as XML. This  
> assumes that document-centric data is embedded in an otherwise data- 
> centric document, but that situation seems far more common than the  
> reverse.


I share your philosophy on designing a system and you word it nicely  
too!

-Frank


>
> -- Ron
>
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