BZaccheo
On 2/27/04 3:43 PM, "Barney Boisvert" <[EMAIL PROTECTED]> wrote:
> More simply, it's a character string such as this:
>
> F95906F1-9207-4774-286345BF3260E685
>
> Which is guarenteed to be unique. It's really a big-ass number that's
> encoded in hexidecimal, and then split with three dashes, but for all
> intensive purposes you can consider it a string. They are generated from
> several inputs, a psuedo-random number generator (PRNG), the MAC address of
> the host machine, and a timestamp. There might be others, and I believe
> they don't have to use the MAC address, in situations where it's not
> available. If you need that detail, read the RFC Jochem provided.
>
> They are useful for generating unique keys whne you don't want the keys in
> sequential integer order like a RDBMS would generate for you. However, I've
> heard of colisions occuring where the same id was generated multiple times.
>
> Cheers,
> barneyb
>
>> > -----Original Message-----
>> > From: Jochem van Dieten [mailto:[EMAIL PROTECTED]
>> > Sent: Friday, February 27, 2004 3:32 PM
>> > To: CF-Talk
>> > Subject: Re: UUID Definition
>> >
>> > Butch Zaccheo wrote:
>>> > > I don�t mean to be dense, but could someone give me the
>> > definition of a
>>> > > �UUID� and it�s uses?
>> >
>> > http://ftp.ics.uci.edu/pub/ietf/webdav/uuid-guid/draft-leach-u
>> > uids-guids-01.txt
>> >
>> > Jochem
>> >
>> >
>> > --
>> > I don't get it
>> > immigrants don't work
>> > and steal our jobs
>> > - Loesje
>> >
>> >
>> >
>
>
[Todays Threads] [This Message] [Subscription] [Fast Unsubscribe] [User Settings]
