Document-oriented database - What if the document definitions change?

Posted by Sebastian Hoitz on Stack Overflow See other posts from Stack Overflow or by Sebastian Hoitz
Published on 2010-05-16T23:21:40Z Indexed on 2010/05/16 23:30 UTC
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As I understand it, you can enter any non-structured information into a document-oriented database. Let's imagine a document like this:

{
  name: 'John Blank',
  yearOfBirth: 1960
}

Later, in a new version, this structure is refactored to

{
  firstname: 'John',
  lastname: 'Blank',
  yearOfBirth: 1960
}

How do you do this with Document-Oriented databases? Do you have to prepare merge-scripts, that alter all your entries in the database? Or are there better ways you can handle changes in the structure?

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