2012/9/30 Neil Harris <[email protected]>:
> On 30/09/12 13:00, [email protected] wrote:
>>
>> Hi,
>> I think a valid_from and valid_to-field would be a great idea. Especially
>> for queries on the db.
>> But I think it is a fundamental design decision and I'm not sure if it's
>> possible to integrate now...
>>
>> LB
>
> Seconded.
>
> This would, for example, allow next year's train timetables to be loaded
> into the database prior to their period of validity, and for the cutover
> between last year's and this year's timetables to then happen automatically
> at the appointed date.
>
> -- N.
Sorry if I get back on this issue, but I don't think that the train
timetables will be THAT important in the future - except for the ones
who have to use DeutscheBahn's services.
It may be, by the way, that this example is just a wrong one to
illustrate something that Wikidata WILL need, that are "historical
data".
There's plenty of datas that are "valid" only from $DateA to $DateB
(i.e. the affiliation to a particular federation, the use of a
particular flag, the definition of a particular capitol city...). Is
this something that you guys already dealt with or not?
Plus, there's also another thing. Let's say that I want to add to
[[Item:Football Federation of Israel]] a particular property "Member".
Now, the Israelis were:
* full members of AFC from 1952 to 1974,
* associated members of OFC from 1974 to 1979, and from 1984 to 1991;
* associated members of UEFA from 1979 to 1984;
* full members of UEFA from 1991 on.
How do we deal with the second statement ("valid from $DateA to $DateB
and from $DateC to $DateD")? Is that something already resolved?
Thanks in advance for the answers.
--
Luca "Sannita" Martinelli
http://it.wikipedia.org/wiki/Utente:Sannita
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