On 01/03/2018 18:41 , Adrian Klaver wrote:
> On 03/01/2018 01:26 PM, Ron Johnson wrote:
>> On 03/01/2018 03:14 PM, Adrian Klaver wrote:
>>> On 03/01/2018 01:03 PM, Ron Johnson wrote:
>>>> On 03/01/2018 02:32 PM, David G. Johnston wrote:
>>>
>>>> There's always the "account number", which is usually synthetic.
>>>> Credit Card numbers are also synthetic.
>>>
>>> Actually, no:
>>>
>>> https://en.wikipedia.org/wiki/Payment_card_number
>>>
>>> There is a method to the madness, not just random issuance of
>>> numbers. It was made it relatively easy for folks to *generate
>>> numbers*. Hence the addition of CSC codes.
>>
>> Right. And how do the issuers generate the individual account
>> identifier within their IIN ranges?
>
> Who knows, that is their business, though there is nothing to say they
> don't use some sort of internal 'natural' logic. It has been awhile
> since we have gone down this rabbit hole on this list, mostly because
> it is an issue that is usually left at 'we agree to disagree'. Though
> the thing that always strikes me is the assumption that a
> number/surrogate key is less 'natural' then some other sort of tag or
> combination of tags. Because that is what PK's are, a tag to identify
> a record.
+1.
>
>>
>>>
>>> ICD numbers are (relatively)
>>>> synthetic, too.
>>>>
>>>> But that doesn't mean we have to use them willy-nilly everywhere.
>>
>> --
>> Angular momentum makes the world go 'round.
>
>
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