Calculate a new field containing X and Y coordinates

Question

I am using QGIS 3.22. I wish to add a field that will represent X,Y or Lat Lon values I managed to create a field for X (using $X) and a field for Y (using $Y) but how do I combine them to one field like this: 177852,655321

Answer 1

You need a string type field, and you need to use pipes (||), like

$x||','||$y

$x and $y you already know, and the pipes concatenate characters. The output could be an integer value, or you can chime in a comma (',') in between to get the notation you want.

Answer 2

A widely used alternative is:

Concat ($x, ',', $y)

concat : https://docs.qgis.org/3.22/en/docs/user_manual/expressions/functions_list.html#concat