I have tried to explain, how you can get SUM of two or more fields/columns in a attribute table using ArcMap with the help of python parser.
!Field_name1!+!Field_name2!
!A_Short_integer!+!B_Long_integer!
Source query:
https://community.esri.com/t5/arcgis-...
Regards
Khalid Mahmood
[email protected]
/ khalidmahmoodgis