I have an attribute table where 2 columns have values in common. What I need is to Select by attributes the rows that have the same values, for this I'm doing:
"w_min"= "MIN_W_MIN" AND "MIN_W_MIN" <> 0
Because I want to select the rows that have the same values in field w_min and field MIN_W_MIN.
What's happening is that it's not selecting those rows and I don't know why. It only select the rows that have 0 in this two fields. Because of that I put the query MIN_W_MIN <> 0
What could be the cause of that failure in selection?