I have a layer with the field size. I did some mistake with the value and now I need the values multiplied by 16.
But instead of going through 500 lines and recalculating them I would like QGIS to do that.
So I tried to mark all features and then I hit the field calculator. Now I selected to take the values and chosen the size column. In the expression I had $Id * 16.
But the result was that I got: 0 16 36
instead of e.g.: 47 38 67
So how can I take a whole column with simple operations?