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.
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