Re: Design database schemas around a common subset of objects

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От Rob Sargent
Тема Re: Design database schemas around a common subset of objects
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Msg-id 23E33948-0181-4457-A375-C1377183B143@gmail.com
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Ответ на Re: Design database schemas around a common subset of objects  (Rich Shepard <rshepard@appl-ecosys.com>)
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> On Nov 7, 2021, at 6:10 PM, Rich Shepard <using SSN (social security numbers) for people are a natural key as is the
> VIN (vehicle identification number) for ... vehicles.
>
> Rich

Be very careful with SSN. Not as unique as you might think. As well as a stretch to call natural.
>
>

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