RE: Generating unique values
While this is true in your case , it depends on the machine being used etc. GUIDs are created using a complicated algorithm which take several factors into consideration. Sometimes this results in consecutive UUID (Guids) being 1 apart, other times it doesn't. It depends on the resource etc. etc. For example if the GUID function drops its counter it has to start again at a point that is definitely past the last one it generated. Justin MacCarthy >-Original Message- >From: C Frederic Valone [mailto:[EMAIL PROTECTED]] >Sent: Tuesday, January 02, 2001 3:51 PM >To: CF-Talk >Subject: Re: Generating unique values > > >> I just checked this out by generating a loop of 50 uuid's and >found that none of the values are incremented by 1 they differ in >various ways although the last portion of the id is the same in all cases. > >> Here is the list that was generated > >00075D9C-F809-1A51-B7D6809AFF5FEEB7 >00075E16-F809-1A51-B7D6809AFF5FEEB7 >00075E7D-F809-1A51-B7D6809AFF5FEEB7 >0007B5EE-F809-1A51-B7D6809AFF5FEEB7 >0007B64F-F809-1A51-B7D6809AFF5FEEB7 > >> >> >> Tuesday, January 02, 2001, 6:15:41 AM, you wrote: >> >> J> But it doesn't create values which are not easy to guess. >> >> J> Two consecutive UUID will have similar values + 1 >> >> J> Justin ~ Paid Sponsorship ~ Get Your Own Dedicated Win2K Server! Instant Activation for $99/month w/Free Setup from SoloServer PIII600 / 128 MB RAM / 20 GB HD / 24/7/365 Tech Support Visit SoloServer, https://secure.irides.com/clientsetup.cfm. Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists
RE: Generating unique values
Erm, isnt this to do with the fact that the id's are taken from a combination of your NIC ID and your system clock? The fact that the template would have been processed in such a fraction of a second could be the answer. Just a thought. N http://www.mcbdigital.com ---> ~ Paid Sponsorship ~ Get Your Own Dedicated Win2K Server! Instant Activation for $99/month w/Free Setup from SoloServer PIII600 / 128 MB RAM / 20 GB HD / 24/7/365 Tech Support Visit SoloServer, https://secure.irides.com/clientsetup.cfm. Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists
Re: Generating unique values
> I just checked this out by generating a loop of 50 uuid's and found that none of the >values are incremented by 1 they differ in various ways although the last portion of >the id is the same in all cases. > Here is the list that was generated 00075D9C-F809-1A51-B7D6809AFF5FEEB7 00075E16-F809-1A51-B7D6809AFF5FEEB7 00075E7D-F809-1A51-B7D6809AFF5FEEB7 00075EE1-F809-1A51-B7D6809AFF5FEEB7 00075F44-F809-1A51-B7D6809AFF5FEEB7 00075FA6-F809-1A51-B7D6809AFF5FEEB7 00076009-F809-1A51-B7D6809AFF5FEEB7 0007606B-F809-1A51-B7D6809AFF5FEEB7 000760CD-F809-1A51-B7D6809AFF5FEEB7 00076130-F809-1A51-B7D6809AFF5FEEB7 00076192-F809-1A51-B7D6809AFF5FEEB7 000761F4-F809-1A51-B7D6809AFF5FEEB7 00076257-F809-1A51-B7D6809AFF5FEEB7 000762B9-F809-1A51-B7D6809AFF5FEEB7 0007631B-F809-1A51-B7D6809AFF5FEEB7 0007637D-F809-1A51-B7D6809AFF5FEEB7 000763DF-F809-1A51-B7D6809AFF5FEEB7 00076441-F809-1A51-B7D6809AFF5FEEB7 000764A3-F809-1A51-B7D6809AFF5FEEB7 00076505-F809-1A51-B7D6809AFF5FEEB7 00076567-F809-1A51-B7D6809AFF5FEEB7 000765C9-F809-1A51-B7D6809AFF5FEEB7 0007662B-F809-1A51-B7D6809AFF5FEEB7 0007668C-F809-1A51-B7D6809AFF5FEEB7 000766EE-F809-1A51-B7D6809AFF5FEEB7 00076750-F809-1A51-B7D6809AFF5FEEB7 000767B2-F809-1A51-B7D6809AFF5FEEB7 00076815-F809-1A51-B7D6809AFF5FEEB7 00076877-F809-1A51-B7D6809AFF5FEEB7 000768D9-F809-1A51-B7D6809AFF5FEEB7 0007693B-F809-1A51-B7D6809AFF5FEEB7 000769A0-F809-1A51-B7D6809AFF5FEEB7 00076A04-F809-1A51-B7D6809AFF5FEEB7 00076A66-F809-1A51-B7D6809AFF5FEEB7 0007B06A-F809-1A51-B7D6809AFF5FEEB7 0007B0EE-F809-1A51-B7D6809AFF5FEEB7 0007B156-F809-1A51-B7D6809AFF5FEEB7 0007B1BB-F809-1A51-B7D6809AFF5FEEB7 0007B21D-F809-1A51-B7D6809AFF5FEEB7 0007B27E-F809-1A51-B7D6809AFF5FEEB7 0007B2E0-F809-1A51-B7D6809AFF5FEEB7 0007B342-F809-1A51-B7D6809AFF5FEEB7 0007B3A3-F809-1A51-B7D6809AFF5FEEB7 0007B405-F809-1A51-B7D6809AFF5FEEB7 0007B467-F809-1A51-B7D6809AFF5FEEB7 0007B4C8-F809-1A51-B7D6809AFF5FEEB7 0007B52A-F809-1A51-B7D6809AFF5FEEB7 0007B58C-F809-1A51-B7D6809AFF5FEEB7 0007B5EE-F809-1A51-B7D6809AFF5FEEB7 0007B64F-F809-1A51-B7D6809AFF5FEEB7 > > > Tuesday, January 02, 2001, 6:15:41 AM, you wrote: > > J> But it doesn't create values which are not easy to guess. > > J> Two consecutive UUID will have similar values + 1 > > J> Justin > > >>-Original Message- > >>From: listmb [mailto:[EMAIL PROTECTED]] > >>Sent: Sunday, December 31, 2000 10:01 PM > >>To: CF-Talk > >>Subject: Re[2]: Generating unique values > >> > >> > >>Thanks Nick, > >> > >>That was just what I was looking for! > >> > >>Best, > >>WayGee > >> > >> > >>Hello Nick, > >> > >>Sunday, December 31, 2000, 4:00:40 PM, you wrote: > >> > >>NM> You can use the CreateUUID function. > >> > >>NM> It generates a Universally Unique ID. It does contain both > >>letters and numbers. > >> > >>NM> At 03:58 PM 12/31/2000 -0500, you wrote: > >>>>Hi, > >>>> > >>>>Being new to cold fusion (1 week), can anyone let me know if there is > >>>>a way to create unique random numbers or strings in cold fusion? > >>>>It should not be iterative or easily guessed. > >>>> > >>>> > >>>>This would help alot! > >>>> > >>>>-- > >>>>Best regards, > >>>>WayGee mailto:[EMAIL PROTECTED] > >>>> > >>>> > >>>> > >>>> > >>NM> > >> > J> > ~ Paid Sponsorship ~ Get Your Own Dedicated Win2K Server! Instant Activation for $99/month w/Free Setup from SoloServer PIII600 / 128 MB RAM / 20 GB HD / 24/7/365 Tech Support Visit SoloServer, https://secure.irides.com/clientsetup.cfm. Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists
RE: Re[4]: Generating unique values
Depends what you want to do but something like : #key# Justin MacCarthy >-Original Message- >From: listmb [mailto:[EMAIL PROTECTED]] >Sent: Tuesday, January 02, 2001 12:50 PM >To: CF-Talk >Subject: Re[4]: Generating unique values > > >Thanks this sounds like they are using a guid call to generate this. >Is there some other algorihth i could use or ways I could do this? > >Thanks, >WayGee > >Hello JustinMacCarthy, > >Tuesday, January 02, 2001, 6:15:41 AM, you wrote: > >J> But it doesn't create values which are not easy to guess. > >J> Two consecutive UUID will have similar values + 1 > > >J> Justin > >>>-Original Message- >>>From: listmb [mailto:[EMAIL PROTECTED]] >>>Sent: Sunday, December 31, 2000 10:01 PM >>>To: CF-Talk >>>Subject: Re[2]: Generating unique values >>> >>> >>>Thanks Nick, >>> >>>That was just what I was looking for! >>> >>>Best, >>>WayGee >>> >>> >>>Hello Nick, >>> >>>Sunday, December 31, 2000, 4:00:40 PM, you wrote: >>> >>>NM> You can use the CreateUUID function. >>> >>>NM> It generates a Universally Unique ID. It does contain both >>>letters and numbers. >>> >>>NM> At 03:58 PM 12/31/2000 -0500, you wrote: >>>>>Hi, >>>>> >>>>>Being new to cold fusion (1 week), can anyone let me know if there is >>>>>a way to create unique random numbers or strings in cold fusion? >>>>>It should not be iterative or easily guessed. >>>>> >>>>> >>>>>This would help alot! >>>>> >>>>>-- >>>>>Best regards, >>>>>WayGee mailto:[EMAIL PROTECTED] >>>>> >>>>> >>>>> >>>>> >>>NM> >>> >J> > ~ Paid Sponsorship ~ Get Your Own Dedicated Win2K Server! Instant Activation for $99/month w/Free Setup from SoloServer PIII600 / 128 MB RAM / 20 GB HD / 24/7/365 Tech Support Visit SoloServer, https://secure.irides.com/clientsetup.cfm. Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists
Re[4]: Generating unique values
Thanks this sounds like they are using a guid call to generate this. Is there some other algorihth i could use or ways I could do this? Thanks, WayGee Hello JustinMacCarthy, Tuesday, January 02, 2001, 6:15:41 AM, you wrote: J> But it doesn't create values which are not easy to guess. J> Two consecutive UUID will have similar values + 1 J> Justin >>-Original Message- >>From: listmb [mailto:[EMAIL PROTECTED]] >>Sent: Sunday, December 31, 2000 10:01 PM >>To: CF-Talk >>Subject: Re[2]: Generating unique values >> >> >>Thanks Nick, >> >>That was just what I was looking for! >> >>Best, >>WayGee >> >> >>Hello Nick, >> >>Sunday, December 31, 2000, 4:00:40 PM, you wrote: >> >>NM> You can use the CreateUUID function. >> >>NM> It generates a Universally Unique ID. It does contain both >>letters and numbers. >> >>NM> At 03:58 PM 12/31/2000 -0500, you wrote: >>>>Hi, >>>> >>>>Being new to cold fusion (1 week), can anyone let me know if there is >>>>a way to create unique random numbers or strings in cold fusion? >>>>It should not be iterative or easily guessed. >>>> >>>> >>>>This would help alot! >>>> >>>>-- >>>>Best regards, >>>>WayGee mailto:[EMAIL PROTECTED] >>>> >>>> >>>> >>>> >>NM> >> J> ~ Paid Sponsorship ~ Get Your Own Dedicated Win2K Server! Instant Activation for $99/month w/Free Setup from SoloServer PIII600 / 128 MB RAM / 20 GB HD / 24/7/365 Tech Support Visit SoloServer, https://secure.irides.com/clientsetup.cfm. Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists
RE: Re[2]: Generating unique values
But it doesn't create values which are not easy to guess. Two consecutive UUID will have similar values + 1 Justin >-Original Message- >From: listmb [mailto:[EMAIL PROTECTED]] >Sent: Sunday, December 31, 2000 10:01 PM >To: CF-Talk >Subject: Re[2]: Generating unique values > > >Thanks Nick, > >That was just what I was looking for! > >Best, >WayGee > > >Hello Nick, > >Sunday, December 31, 2000, 4:00:40 PM, you wrote: > >NM> You can use the CreateUUID function. > >NM> It generates a Universally Unique ID. It does contain both >letters and numbers. > >NM> At 03:58 PM 12/31/2000 -0500, you wrote: >>>Hi, >>> >>>Being new to cold fusion (1 week), can anyone let me know if there is >>>a way to create unique random numbers or strings in cold fusion? >>>It should not be iterative or easily guessed. >>> >>> >>>This would help alot! >>> >>>-- >>>Best regards, >>>WayGee mailto:[EMAIL PROTECTED] >>> >>> >>> >>> >NM> > ~ Paid Sponsorship ~ Get Your Own Dedicated Win2K Server! Instant Activation for $99/month w/Free Setup from SoloServer PIII600 / 128 MB RAM / 20 GB HD / 24/7/365 Tech Support Visit SoloServer, https://secure.irides.com/clientsetup.cfm. Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists
Re[2]: Generating unique values
Thanks Nick, That was just what I was looking for! Best, WayGee Hello Nick, Sunday, December 31, 2000, 4:00:40 PM, you wrote: NM> You can use the CreateUUID function. NM> It generates a Universally Unique ID. It does contain both letters and numbers. NM> At 03:58 PM 12/31/2000 -0500, you wrote: >>Hi, >> >>Being new to cold fusion (1 week), can anyone let me know if there is >>a way to create unique random numbers or strings in cold fusion? >>It should not be iterative or easily guessed. >> >> >>This would help alot! >> >>-- >>Best regards, >>WayGee mailto:[EMAIL PROTECTED] >> >> >> >> NM> ~ Paid Sponsorship ~ Get Your Own Dedicated Win2K Server! Instant Activation for $99/month w/Free Setup from SoloServer PIII600 / 128 MB RAM / 20 GB HD / 24/7/365 Tech Support Visit SoloServer, https://secure.irides.com/clientsetup.cfm. Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists
Re: Generating unique values
You can use the CreateUUID function. It generates a Universally Unique ID. It does contain both letters and numbers. At 03:58 PM 12/31/2000 -0500, you wrote: >Hi, > >Being new to cold fusion (1 week), can anyone let me know if there is >a way to create unique random numbers or strings in cold fusion? >It should not be iterative or easily guessed. > > >This would help alot! > >-- >Best regards, >WayGee mailto:[EMAIL PROTECTED] > > > > ~ Paid Sponsorship ~ Get Your Own Dedicated Win2K Server! Instant Activation for $99/month w/Free Setup from SoloServer PIII600 / 128 MB RAM / 20 GB HD / 24/7/365 Tech Support Visit SoloServer, https://secure.irides.com/clientsetup.cfm. Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists
Generating unique values
Hi, Being new to cold fusion (1 week), can anyone let me know if there is a way to create unique random numbers or strings in cold fusion? It should not be iterative or easily guessed. This would help alot! -- Best regards, WayGee mailto:[EMAIL PROTECTED] ~ Paid Sponsorship ~ Get Your Own Dedicated Win2K Server! Instant Activation for $99/month w/Free Setup from SoloServer PIII600 / 128 MB RAM / 20 GB HD / 24/7/365 Tech Support Visit SoloServer, https://secure.irides.com/clientsetup.cfm. Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists
