[Qgis-user] combine field calculator functions

Jürgen E. Fischer jef at norbit.de
Wed Aug 7 00:36:44 PDT 2013


Hi Michael,

On Tue, 06. Aug 2013 at 13:38:35 +0200, Michael Giebels wrote:
>    I am wondering how I could combine field calculator functions in order to
>    convert information from an existing data column into a new one.
>    What I can do with my mediocre knowledge is to query information from
>    column 1 by setting
> 
>    "column1"='abc'
> 
>    which gives me a binary result (0,1) in my resulting column. Then I can
> 
>    replace ("newcolumn",'1','6')
> 
>    How could I combine these two into one working function (i.e. there MUST
>    be a simple expression in the function list) and do not lose the new
>    number when querying another information (e.g. 'cba') from column 1?

Um, are you looking for the following?

CASE WHEN "column1"='abc' THEN '6' ELSE '0' END


Jürgen

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Jürgen E. Fischer         norBIT GmbH               Tel. +49-4931-918175-31
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committ(ed|ing) to QGIS                                IRC: jef on FreeNode                         

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