[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] RE: XML Database Decision Tree?
> -----Original Message----- > From: Soumitra Sengupta [mailto:soumitra@b...] > Sent: Monday, October 22, 2001 2:12 PM > To: Tim Bray > Cc: Champion, Mike; xml-dev@l... > Subject: Re: XML Database Decision Tree? > > > > Now putting on the "faraway look in my eyes" I forgot to answer the original question in my response: I used the bill of materials example to illustrate a SQL limitation that can make it hard to do a straightforward mapping from XML onto SQL tables and retain the power of XML/XPath. I don't advocate Tamino as a general "bill of materials" DBMS, just that an XML representation of a bill of materials lets you answer a question with XPath that is difficult with SQL. The "faraway look" was standard nerd procedure, not symptoms of incipient marketing weaseldom. Also, before Soumitra reminds me <grin>, I know that B-Bop, Monet, and other sophisticated XML->RDBMS mappings don't have the recursive query problem that a simple normalization could have, and I wasn't trying to promote "proprietary" XML engines, simply the greater ease of use of XPath-related languages over SQL-related languages for a certain class of interesting practical problems. > a) a virtual db for data integration (customer model, patient > record are 2 areas I can think of) Right! IDC calls our sector the "XML and Virtual Database Management System Market." See the relevant report (and various other analyst reports that we have licensed for distribution) at http://www.softwareagusa.com/news/analyst_spk.htm Most of these do address the "what's this stuff good for in the real world" question.
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