Why do you want to combine uuid ?
Russell Brown
Internet Application Developer
Freeserve.com Plc, PO Box 452, Leeds LS2 7EY
Telephone: 0113 207 1203
-----Original Message-----
From: David Aden [mailto:[EMAIL PROTECTED]]
Sent: 18 July 2001 17:16
To: Spectra-Talk
Subject: somewhat OT UUID question
Somewhat Off-Topic (OT), slighly wacky questions...
Does anyone know the general algorithm used to produced UUID's?
I know that if you create a bunch of objects right after one another,
the
UUID usually changes in only one place. However, if you make objects
on
different days, there is a wider divergence.
Anyone have an idea of the algorithm used?
I guess a related question is whether there is anyway to force UUIDs
to
diverge by more than one character if created within a relatively
short time
span.
Where I'm going with this is I have a situation in which I might want
to
"add" UUIDs together and need to have a reasonably good assurance
that the
result will be unique, i.e. that it is quite unlikely that some other
combination of UUIDs in the database, when added together, equals the
same
result.
So, I guess an alternative question would be whether there is a
relatively
fast algorithm for combining UUIDs in such a way that the result has
a high
likelihood of being unique to that specific combination of UUIDs. I'm
looking to combine anywhere from two to 10 UUIDs.
David
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