https://community.esri.com/t5/arcgis-pro-questions/nodata/m-p/1053223#M40430 <P>Hello,</P><P>How can I add a no data field to an attribute table (no data and not a value of 0) ?</P> Fri, 30 Apr 2021 15:20:24 GMT MohamadAchour 2021-04-30T15:20:24Z https://community.esri.com/t5/arcgis-pro-questions/nodata/m-p/1053223#M40430 <P>Hello,</P><P>How can I add a no data field to an attribute table (no data and not a value of 0) ?</P> Fri, 30 Apr 2021 15:20:24 GMT https://community.esri.com/t5/arcgis-pro-questions/nodata/m-p/1053223#M40430 MohamadAchour 2021-04-30T15:20:24Z https://community.esri.com/t5/arcgis-pro-questions/nodata/m-p/1053233#M40431 <P>Either make a field Nullable in the field properties or you maybe mean how to turn zeros to Null?</P><P>I'd say field calculator with a python statement like&nbsp;</P><LI-CODE lang="markup">if !Field1! == 0: return None else: return !Field1!</LI-CODE> Fri, 30 Apr 2021 15:43:24 GMT https://community.esri.com/t5/arcgis-pro-questions/nodata/m-p/1053233#M40431 DavidPike 2021-04-30T15:43:24Z