2016-04-14 19:49 GMT+02:00 Dominique Devienne <ddevienne at gmail.com>:

> On Thu, Apr 14, 2016 at 7:48 PM, Cecil Westerhof <cldwesterhof at gmail.com>
> wrote:
>
> > If I would have a table where a lot of values are NULL. Would it be
> > possible to exclude those records from the index? I would only search
> for a
> > certain value not for NULL. Or is it the default that they are excluded?
>
>
> https://www.sqlite.org/partialindex.html


?OK, I have to exclude it myself. (Is the sane option I think.)

I have to study the page: it has the solution of another problem I was
contemplating. From active records the description should be UNIQUE, but it
is not necessary for inactive records. I saw that this page has the
solution. :-)

-- 
Cecil Westerhof

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