I have a polygon shapefile and a point shapefile. At the point shapefile, I want to create a column, which will inform me about the polygon where each point exists. What do you suggest?
I mainly use QGIS, but I am also familiar with ArcMap.
An easy way to do it in QGIS is to use 'Join attributes by location' algorithm under
QGIS geoalgorithms > Vector general tools from the Processing Toolbox. Your target layer would be your point layer and the join layer would be the polygon layer. Since you want the details of the polygon in which the point lie, use the within option. Below is a screenshot for reference-
You can use the Points in Polygon tool in QGIS. From the menu click Vector > Analysis Tools > Points in Polygon...