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I would go for your first solution, transfering data from a database to another. And there are several reasons for that:

  • Having a new database created and filled with data, you can actually test your data with the existing code before switching.

  • With the other approaches, if an error occurs, it is more difficult to roll back to your initial stage.

On a side note, even though I know that it may be late for you, I would say that changing data structures during development could be a symptom of a weak design. Perhaps spending more time at the design desk would save you all this ordeal.

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In reply to Re: OT: Ways of managing changes to a database's structure during a project. by gmax
in thread OT: Ways of managing changes to a database's structure during a project. by EvdB

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