Re: Artificial Primary keys

Jan Emil Larsen wrote:

> In theory, your "time and place of birth"-key is indeed immutable and

> I practice, if "time and place" by an error was recorded wrongly, you would
> have to change the key - not because then person became another person, but
> due to an error. Errors happens.

That's because what you are actually using as the key is *not* the "time and place of birth", it is "a person's attempt to record the time and place of birth".

That's a problem, I suppose, for *any* key that has to be input rather than generated internally.

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