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Re: [xml-dev] Caught napping!
We have to be a bit patient about this. Unlike the RDBMS, theory is way behind
implementation in the XML world. The database vendors are just trying to provide
a solution for needs in the application development community. I believe each
vendor is developing and operating on their own "logical framework". There are
obvious works from which we are all borrowing. Semi-structured databases is one
such area. So it will take a bit of time before you will get to the stage where
you will know what to look for in a product. The Query Language is not yet final
and is likely to go through several iterations. How long did it take for RDBMS
to get to that stage inspite of the fact that it was built on sound and pretty
complete theory?
Soumitra
Subrahmanyam Allamaraju wrote:
>
> When I look at relational databases, I know what to look for in a
> product - from the logical model to the query language to other
> "ilities". The same is more or less the case with document management
> systems. However, I've difficulty when it comes to XML databases. They
> are different in terms of level of granularity of operations, query
> languages, etc. Most of these products have additional semantics for
> different kind of operations (queries, updates, inserts, deletes,
> imports, exports, transactions etc) on data. So my question is about the
> logical framework underlying all these "features".
>
> Subbu
>
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