Documented database. What if document definitions change?

Question

As I understand it, you can enter any unstructured information into a document-oriented database. Imagine a document like this:

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

Later, in the new version, this structure is reorganized into

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

How do you do this with document-oriented databases? Do you need to prepare merge scripts that modify all your records in the database? Or are there better ways to handle structural changes?

Answer 1

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