Re: unique ascending numbers
This WebDNA talk-list message is from 2003
It keeps the original formatting.
numero = 50201
interpreted = N
texte = >I would guess that multiple cart numbers generated in the same epoc second >are not necessarily ascending due to the random (not ascending) characters >appended. Whoever said there are random characters appended was wrong. The appended characters are based on the number of thread hits since another date/time in the past -- so the conclusion that the cart value is ever-increasing is correct *except* possibly in two situations:1- when you change the server's clock back, you may end up repeating a cart value because part of the cart value is based on the current time. By setting the time back you also possibly repeat a previously created cart value.2- when you change servers, the first portion of the cart value will change because that portion is based on some value which is unique to that server -- probably the MAC address -- which is different on every piece of hardware. So if this unique portion of the cart value is less than the old portion, the historical list of generated cart values may no longer be increasing. -- Sincerely, Kenneth Grome ------------------------------------------------------------- My programmers will write WebDNA code for you at $27 an hour! -------------------------------------------------------------------------------------------------------------------------- This message is sent to you because you are subscribed to the mailing list
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Associated Messages, from the most recent to the oldest:
>I would guess that multiple cart numbers generated in the same epoc second >are not necessarily ascending due to the random (not ascending) characters >appended. Whoever said there are random characters appended was wrong. The appended characters are based on the number of thread hits since another date/time in the past -- so the conclusion that the cart value is ever-increasing is correct *except* possibly in two situations:1- when you change the server's clock back, you may end up repeating a cart value because part of the cart value is based on the current time. By setting the time back you also possibly repeat a previously created cart value.2- when you change servers, the first portion of the cart value will change because that portion is based on some value which is unique to that server -- probably the MAC address -- which is different on every piece of hardware. So if this unique portion of the cart value is less than the old portion, the historical list of generated cart values may no longer be increasing. -- Sincerely, Kenneth Grome ------------------------------------------------------------- My programmers will write WebDNA code for you at $27 an hour! -------------------------------------------------------------------------------------------------------------------------- This message is sent to you because you are subscribed to the mailing list . To unsubscribe, E-mail to: To switch to the DIGEST mode, E-mail to Web Archive of this list is at: http://webdna.smithmicro.com/
Kenneth Grome
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