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S
SillyHerbert
Participant
April 25, 2006
Question

Decode UUID

  • April 25, 2006
  • 3 replies
  • 5957 views
From what I understand UUID is a unique number generated from the current date and the MAC address of the computer that generated it.

Is there any way I can decode a UUID to reveal this information? I'm thinking I could save a few precious milliseconds if I didn't have to store and retrieve dates from separate fields in my tables.
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    3 replies

    N
    Newsgroup_User
    Inspiring
    April 26, 2006
    > contain both (8-4-4-16) and (8-4-4-4-12) formats.

    Generally speaking, this is no problem, other than an aesthetic one. The
    dashes are not meaningful data, they're just a visual aid (I don't really
    understand why they're there, to be honest).

    --
    Adam
    S
    SillyHerbertAuthor
    Participant
    April 26, 2006
    Thanks, that's slightly beyond my level of comprehension at the moment.

    It seems I have muddied my data somewhat, creating both MySql UUIDs directly inside Cfquery calls, and indirectly as CF UUIDS assigned to variables. The result is that my tables contain both (8-4-4-16) and (8-4-4-4-12) formats. =( I don't imagine this a huge problem but I'll be more consistent in future.
    N
    Newsgroup_User
    Inspiring
    April 25, 2006
    I suspect this is it:
    http://java.sun.com/j2se/1.5.0/docs/api/java/util/UUID.html

    --
    Adam
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