El viernes, 9 de agosto de 2013 16:52:23 UTC-3, Anthony escribió: > > > > But is not "suma" I want to show, the entire operation "(suma / >> superficie) * 100" >> > > percentage = (suma / tb_establecimientos.superficie) * 100 > rows = db(qry).select(..., percentage, ...) > rows[0][percentage] > > Or, keeping the code as you have it, you could do: > > rows[0]['((SUM(lotes.superficie) / establecimientos.superficie) * 100.0)'] > > For more details, see > https://groups.google.com/d/msg/web2py/WAw9Z97HJjU/b4XRX2w3xu8J. > > Anthony > > It works fine.
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