In response to pere roca :
>
> dear Andreas,
>
> thanks for the answer; yes, round should be the first, but it gives an
> error: Function round(real, integer) does not exists
UPDATE point_pol SET taxa_record = round(((SELECT ((CASE WHEN numtax>0
THEN numtax/numreg ELSE 1 END)))::numeric,2) ...
sorry, my fault, i forgot the CAST.
Andreas
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Andreas Kretschmer
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