Both CASE WHEN "A" like '30STH400500' THEN (30 + 20 + 10) ELSE 0 END
and CASE WHEN "A" = '30STH400500' THEN (30 + 20 + 10) ELSE 0 END should work. If you want to assign this to D, you must specify D in "Output field name". Håvard On 04. nov. 2014 20:29, Matías Taborda Barroso wrote:
Hi. I'm spanish user, sorry for my English. I'm using Google translator. I have a .shp points file with attribute table. Like this... |-- A -- -- B -- -- C -- QString Double Double Data type 30STH400500 1 30 30STH400500 1 30 30STH400500 1 30 30STH400500 1 30 ........... ... ... ........... ... ... 30STH400500 2 10 30STH400500 2 10 30STH400500 2 10 30STH400500 2 10 ........... ... .... ........... ... .... 30STH400500 3 20 30STH400500 3 20 30STH400500 3 20 30STH400500 3 20 ........... ... .... ........... ... .... 30STH450450 1 10 ............................... ...............................|| | I have 50 different valuesv of A field. And now, I want a new field, "D" (Data type, double) like this in field calculator: |WHEN "A"='30STH400500' THEN/*D = 30 + 20 + 10 = 50*/| I don't know if I have explained it. I've tried using CASE WHEN A..... THEN .... ELSE but I don't get it. I think that with plugin Fieldpyculator, but I don't know python Please, help me. Thanks. _______________________________________________ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
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