Re: [Semediawiki-user] getting only unique instances of a field from a query

[Dan B. <dan...@gm...>]

Hi dhivya,

The only way I know is by using arrays, as 'documented' here:
http://smw.referata.com/wiki/List_the_set_of_unique_values_for_a_property

I believe Gu's SemanticQueryFormTool (sask) also allows a query to
return the set of unique values:
http://www.mediawiki.org/wiki/Extension:SemanticQueryFormTool

You can get something close with the facets feature of the exhibit
format (unique values are listed in a box on the right), but I don't
know if you can restrict the result to just those values.


I think this is a big missing feature in #ask:, but it is related to a
suite of 'group by' features that are not so easy to implement.


HTH,
Dan.

On 8 July 2010 20:29, dhivya arasappan <dh...@gm...> wrote:
> Hi all,
>
> I'm using a convoluted ask query (with arrays etc) to get some results out.
> The problem is because I do an ask for each element in the array, I get
> repetitive results.
>
> So, I was wondering if there was an easy way to have ask pull out only
> unique values for a certain field and/or for the whole row?
>
> thanks
> dhivya
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