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42931RE: [XP] XP, database design and cost of change

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  • Charlie Poole
    Feb 4, 2002
      Good point.

      > -----Original Message-----
      > From: Blum, Robert [mailto:rblum@...]
      > Sent: Monday, February 04, 2002 12:25 PM
      > To: 'extremeprogramming@yahoogroups.com'
      > Subject: RE: [XP] XP, database design and cost of change
      >
      >
      > > From: Charlie Poole [mailto:cpoole@...]
      >
      > > I was thinking about doing the same thing but I'm too tied up
      > > right now.
      > >
      > > Here are a few thoughts. All of them assume input of two scripts that
      > > generate a database, with one of them being the earlier form and the
      > > other a newer revised form. Output is to be a script which will
      > > update the earlier form to the later form.
      >
      > Can we stipulate that the input scripts do not necessarily generate a
      > database, but only contain a DB description? (Just for now)
      >
      > It's quite easy to actually dump a DB schema in XML notation, and that would
      > make it much easier for me to create a working prototype - hence more value
      > earlier on :)
      >
      > > 1. Recognize that no changes have been made and indicate by a message.
      > > 2. Recognize that a table has been added (and generate the script)
      > > 3. Recognize that a table has been deleted
      > > 4. Recognize that a table definition has been altered
      >
      > I assume 3 and 4 generate a script, too?
      >
      > Bye,
      > Robert
      >
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