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MathGroup Archive 2007

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Integrated Data Sources

  • To: mathgroup at smc.vnet.net
  • Subject: [mg80062] Integrated Data Sources
  • From: rxm at inbox.com
  • Date: Sat, 11 Aug 2007 02:20:00 -0400 (EDT)

I'm confused about the Integrated Data Sources in
Mathematica 6.  Theo Gray, on the Wolfram Blog makes the
claim that

    It's really more productive to forget about the database
    aspect of things and just think of data functions like
    any other Mathematica functions that return answers <
    ...stuff deleted...> don't worry about calling the data
    functions many times: they cache cleverly and are very
    fast after the initial download or update.

Are those statements related to DatabaseLink?  What controls
the cache?  Does one need to write custom Java or C code to
implement something like ChemicalData[]?  What are Paclets
and how are they related to this topic?

Illumination appreciated.

(
Link to Theo Grays article:
http://blog.wolfram.com/2007/05/computable_data_functions.html
)



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