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42935Re: [XP] XP, database design and cost of change

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  • David Corbin
    Feb 4, 2002
      And I can throw some perl code at you if you want, which generates such
      a script (for oracle) if it is wanted (I've started done this path, but
      got distracted...)

      Charlie Poole wrote:

      >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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      >
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