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I’m a developer. Explain why I need a unique key

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I’m a developer. Explain why I need a unique key on my table.

And really pretend that you’re a developer. If you’re a DBA manager, bring in one of your toughest developers to play bad cop. Challenge them – does it really improve performance or manageability? How do you know? Is it just your opinion, or where’s the proof?

If they can explain it in clear, easy-to-comprehend terms, that bodes well for their ability to communicate with other teams. Speaking of inter-team communication…

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