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I have spent two decades building and leading engineering teams. Here's what I learned, so you can apply it to your own migration.
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The article discusses the importance of verifying data during a migration, as a green checkmark can be misleading if the data is incorrect. The author shares their experience of migrating 12.3 million records from a legacy Oracle monolith to microservices backed by PostgreSQL and DocumentDB, and how they achieved a 99.9994% match rate by following a series of steps to ensure data correctness.