Re: [libreoffice-users] LO Base Query - 'count' function behaviour

Thank you, Robert! As always on target. 

This is better than filling the Location fields with some unneeded
value. Great stuff. Man lernt nie aus!

Cheers
Harvey

On Tue, 2022-08-16 at 10:15 +0200, Robert Großkopf wrote:
> Hi Harvey,
> >   SELECT `Location`, COUNT( `Location` ) FROM
> > `Item_Management`.`Items`
> > `Items` GROUP BY `Location`
> >
> > The result is correct for all LOCATIONS that are not empty, but
> > surpisingly the blank field for the empty locations is accompanied
> > by
> > the value 0. How can I get the right count for the empty fields as
> > well?
>
> Try this:
> SELECT COALESCE(`Location`,'Empty') AS `Loc`, COUNT( `ID` ) FROM 
> `Item_Management`.`Items` GROUP BY `Loc`
>
> COUNT: Always use a field which should never be NULL (primary key for
> example)
> Set a vallue for a field, which is empta at this moment. If
> "Location" 
> contains characters it will work with 'Empty' as shown above.
>
> Didn't test it!
>
> Regards
>
> Robert
> -- 
> Homepage: https://www.familiegrosskopf.de/robert


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