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RE: raw storage about NXD

  • To: "'Qiang Song'" <sq02@k...>,"'xml-dev'" <xml-dev@l...>
  • Subject: RE: raw storage about NXD
  • From: "Michael Kay" <michael.h.kay@n...>
  • Date: Tue, 23 Dec 2003 15:14:29 -0000
  • Importance: Normal
  • In-reply-to: <20031223125159.VTPD19387.mta05-svc.ntlworld.com@m...>
  • Reply-to: <michael.h.kay@n...>

nxd xml
Clearly the internal storage format for XML document is (as you have
identified) quite hard to get right, balancing the requirements of
update performance, retrieval performance, and space efficiency. It's
therefore a source of competitive advantage, so suppliers therefore
aren't going to be very open about how they tackle the problem. In
principle, of course, as a user you shouldn't need to know how the data
is stored internally.

Michael Kay

> -----Original Message-----
> From: Qiang Song [mailto:sq02@k...] 
> Sent: 23 December 2003 12:49
> To: xml-dev
> Subject:  raw storage about NXD
> 
> 
> xml-dev:
>     I have explored NXD for several weeks.and used some 
> industry products just like Ipedo and Tamino,also apache open 
> source Xindice.But till now I am still not very clear about 
> the raw storage form for XML 
> documents.is it in pure text format?If true,how to execute 
> the query and update operations.how to index for documents.if 
> using DOM to build a tree from pure-text XML document before 
> executing query or update,then i think it will be very low-efficiency.
> 
> Could anybody give me some directions?
> 
> 	
> 
> 
> 
>  Best regards
>  Qiang Song
>  Dept. of Computer Science, Tsinghua University  
> sq02@m...  sq02@k...  
> Blog:http://www.blogcn.com/blog?u=pavon
>  2003-12-23
> 
> 
> 
> -----------------------------------------------------------------
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