This would still make things "vulnerable" whenever date/time changed on the generating machine .... the "beauty" of the sequential ID is that fact that nit WILL be in "real time" order, regardless of what people do with dae & time of the machine
Ross Ferris Stamina Software Visage - an Evolution in Software Development >-----Original Message----- >From: [EMAIL PROTECTED] [mailto:owner-u2- >[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] >Sent: Tuesday, 28 June 2005 7:14 PM >To: [email protected] >Subject: RE: [U2] - Determining time sequence > >Given an uuid string generated by AIX uuid_gen: >b6e7ce371f25.02.ac.1e.10.03.00.00.00 >Under Windows "uuidgen.exe -x": 9b0a5933-e7b1-11d9-868e-000bcdf8b9a5 > >The first part(s) of these are time based, though it may be difficult (but >not impossible) to convert it back into a UV date/time format, the string >will date/time sort either automatically in the aix case or by sorting on >the (4th?,) 3rd, 2nd then 1st parts in the MS case. > >Doing a google search on 'uuid primary key' results in alternating for and >against arguments. > >Regards, >Stuart Boydell > > >[EMAIL PROTECTED] wrote on 28-06-2005 17.20.58: > >> But I don't think there is a way to extract a time element from the >> UUID, is there ? > > >********************************************************************** >This email message and any files transmitted with it are confidential >and intended solely for the use of addressed recipient(s). If you have >received this email in error please notify the Spotless IS Support Centre >(61 3 9269 7555) immediately who will advise further action. > >This footnote also confirms that this email message has been scanned >for the presence of computer viruses. >********************************************************************** >------- >u2-users mailing list >[email protected] >To unsubscribe please visit http://listserver.u2ug.org/ ------- u2-users mailing list [email protected] To unsubscribe please visit http://listserver.u2ug.org/
