Re: Using PK value as a String

Am 12.08.2008 um 17:04 schrieb Bill Moran:

> In response to Moritz Onken <onken@houseofdesign.de>:
>
>> We chose UUID as PK because there is still some information in an
>> integer key.
>> You can see if a user has registered before someone else (user1.id <
>> user2.id)
>> or you can see how many new users registered in a specific period of
>> time
>> (compare the id of the newest user to the id a week ago). This is
>> information
>> which is in some cases critical.
>
> So you're accidentally storing critical information in magic values
> instead of storing it explicitly?
>
> Good luck with that.
>


How do I store critical information? I was just saying that it easy
to get some information out of a primary key which is an incrementing
integer. And it makes sense, in some rare cases, to have a PK which
is some kind of random like UUIDs where you cannot guess the next value.

moritz