topic Re: Set empty strings to null in ArcGIS Spatial Analyst Questions https://community.esri.com/t5/arcgis-spatial-analyst-questions/set-empty-strings-to-null/m-p/138469#M1964 <HTML><HEAD></HEAD><BODY><SPAN>When you created your featureclass, and added that field, there was an option for allowing nulls.&nbsp; It's probably set to No.&nbsp; I don't think you can change it without recreating the featureclass.</SPAN></BODY></HTML> Fri, 29 Mar 2013 14:28:34 GMT LeoDonahue 2013-03-29T14:28:34Z Set empty strings to null https://community.esri.com/t5/arcgis-spatial-analyst-questions/set-empty-strings-to-null/m-p/138466#M1961 <HTML><HEAD></HEAD><BODY><SPAN>How do I calculate field to replace empty strings with Null? I realize there is a Set Null tool available with the spatial analyst extension.&nbsp; Without this is there another way?</SPAN></BODY></HTML> Fri, 29 Mar 2013 13:31:50 GMT https://community.esri.com/t5/arcgis-spatial-analyst-questions/set-empty-strings-to-null/m-p/138466#M1961 NoahHuntington 2013-03-29T13:31:50Z Re: Set empty strings to null https://community.esri.com/t5/arcgis-spatial-analyst-questions/set-empty-strings-to-null/m-p/138467#M1962 <HTML><HEAD></HEAD><BODY><SPAN>Do a select by attributes on the field using '' as the expression to select empty strings.</SPAN><BR /><BR /><SPAN>Field calculate using: null&nbsp; as the expression.</SPAN></BODY></HTML> Fri, 29 Mar 2013 14:02:35 GMT https://community.esri.com/t5/arcgis-spatial-analyst-questions/set-empty-strings-to-null/m-p/138467#M1962 LeoDonahue 2013-03-29T14:02:35Z Re: Set empty strings to null https://community.esri.com/t5/arcgis-spatial-analyst-questions/set-empty-strings-to-null/m-p/138468#M1963 <HTML><HEAD></HEAD><BODY><SPAN>Generated "Not Nullable" error on field.&nbsp; Where can I change this?</SPAN></BODY></HTML> Fri, 29 Mar 2013 14:14:10 GMT https://community.esri.com/t5/arcgis-spatial-analyst-questions/set-empty-strings-to-null/m-p/138468#M1963 NoahHuntington 2013-03-29T14:14:10Z Re: Set empty strings to null https://community.esri.com/t5/arcgis-spatial-analyst-questions/set-empty-strings-to-null/m-p/138469#M1964 <HTML><HEAD></HEAD><BODY><SPAN>When you created your featureclass, and added that field, there was an option for allowing nulls.&nbsp; It's probably set to No.&nbsp; I don't think you can change it without recreating the featureclass.</SPAN></BODY></HTML> Fri, 29 Mar 2013 14:28:34 GMT https://community.esri.com/t5/arcgis-spatial-analyst-questions/set-empty-strings-to-null/m-p/138469#M1964 LeoDonahue 2013-03-29T14:28:34Z