Storing Lots of Fiddly Bits (was Re: What is XML for?)

Clark Evans clark.evans at
Fri Feb 5 05:02:36 GMT 1999

Jonathan Borden wrote:

> Another approach is to use data shaping to create hierarchical recordsets. 

This is what I did at Ford Motor Co., it gets messy quick. 
Even when the table is a snapshot.  Nothing like a big hierarchical 
table with 400 columns. *evil grin*

> A third approach is to let the database vendors optimize the queries 
> internally when XML is to be returned. This would seem to be the 
> optimal situation and data shaping/OLAP techniques fit here ... 
> remember "Arbor Software" is an OLAP vendor.

Nice.  This could be the beginnings of a 
HDBMS/RDBMS blend.  That'd be cool.

The danger is thinking that OLAP (HDBMS) is the
total answer.  It is almost impossible to avoid
duplication in a hierarchical database.  For
transaction processing, I bet that a relational
database will still be the best solution.



software n : 
  1. written programs or procedures or rules and 
     associated documentation pertaining to the 
     operation of a computer system.
  2. applied philosophy

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