Rest assurred that the GUID (or UUID) is unique enough to base very large systems on. Its a commonly used primary key in a system that uses replication across geographically disperse sites and rollup to a single data warehouse.
Todd -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Rod Dorman Sent: Tuesday, May 21, 2002 12:47 PM To: [EMAIL PROTECTED] Subject: RE: Re[3]: [IMail Forum] Problem with AOL delivery R. Scott Perry wrote: > Rod Dorman wrote: > > I'm curious how they can claim uniqueness without any coordination > > unless it involves some attribute unique to the machine its running on. > > ... You can do a search for GUID and "Open Software Foundation" > (the group that apparently developed the GUID) for more information. Thanks, I found it http://www.opengroup.org/dce/info/draft-leach-uuids-guids-01.txt they call it a UUID (Universally Unique IDentifier) > The GUID takes a number of pieces of information into account to make sure > that locally created GUIDs are unique (such as the current time and a > counter), and the network card's ID (if none exist, a special ID is created > and stored persistently). It's theoretically possible for a duplicate to be created but I'm satisfied that the probability is vanishingly small. -- [EMAIL PROTECTED] "The avalanche has already started, it is too Rod Dorman late for the pebbles to vote." � Ambassador Kosh Please visit http://www.ipswitch.com/support/mailing-lists.html to be removed from this list. An Archive of this list is available at: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Please visit the Knowledge Base for answers to frequently asked questions: http://www.ipswitch.com/support/IMail/ --- [This E-mail scanned for viruses by Declude Virus] --- [This E-mail scanned for viruses by Declude Virus] Please visit http://www.ipswitch.com/support/mailing-lists.html to be removed from this list. An Archive of this list is available at: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Please visit the Knowledge Base for answers to frequently asked questions: http://www.ipswitch.com/support/IMail/
