[xquery-talk] Re: The State of Native XML databases

John Snelson john.snelson at oracle.com
Tue Aug 21 14:26:05 PDT 2007

Elliotte Harold wrote:
> Ilya Sterin wrote:
>> I don't necessarily debate the schema itself, but there must be a DDL
>> to represent the schema, right? 
> There doesn't have to be a schema at all, nor do the documents you put 
> into a database necessarily have to conmform to a schema if there is 
> one. (One big difference between SQL and XML).
> Do any of the XML databases out there actually require that users 
> provide a schema and then automatically reject all documents that do not 
> conform to that schema?

It's my understanding that XML support in a number of the big relational 
databases requires an XML Schema, and cannot store documents that do not 
conform to the schema.


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