topic Re: Error in Attribute Table? in ArcMap Questions https://community.esri.com/t5/arcmap-questions/error-in-attribute-table/m-p/101944#M263 <HTML><HEAD></HEAD><BODY><P>You have multipart polygons... you can convert them to singlepart using</P><P></P><P><A class="link-titled" href="https://pro.arcgis.com/en/pro-app/tool-reference/data-management/multipart-to-singlepart.htm" title="https://pro.arcgis.com/en/pro-app/tool-reference/data-management/multipart-to-singlepart.htm">Multipart To Singlepart (Data Management)—ArcGIS Pro | Documentation</A>&nbsp;</P><P></P><P>This tool exists in arcmap and arcgis pro.</P><P></P><P>Sometimes shapes are grouped together as one since they share the same/common attributes.&nbsp; Sometimes treating the "collective" as one is useful.&nbsp; Sometimes it is not.&nbsp; You would be advised to keep both versions.</P><P></P><P>The reverse of that tool (aka singlepart to multipart ) is the Dissolve tool</P><P><A class="link-titled" href="https://pro.arcgis.com/en/pro-app/tool-reference/data-management/dissolve.htm" title="https://pro.arcgis.com/en/pro-app/tool-reference/data-management/dissolve.htm">Dissolve (Data Management)—ArcGIS Pro | Documentation</A>&nbsp;</P></BODY></HTML> Mon, 19 Oct 2020 01:17:24 GMT DanPatterson 2020-10-19T01:17:24Z Error in Attribute Table? https://community.esri.com/t5/arcmap-questions/error-in-attribute-table/m-p/101943#M262 <HTML><HEAD></HEAD><BODY><P>Hello,</P><P></P><P>I got stuck in using the attribute table for the feature class.</P><P>It is common sense that one object ID is assigned to one feature.&nbsp;&nbsp;</P><P>Most of my data were in that sense, and I had no problem of using the data.</P><P>However, this data is kind of weird that when I select the row (one object ID which must be relevant with only one feature!) it selects multiple polygons on the map.</P><P>Anyone has some ideas to fix this?</P></BODY></HTML> Mon, 19 Oct 2020 00:14:46 GMT https://community.esri.com/t5/arcmap-questions/error-in-attribute-table/m-p/101943#M262 hm_stella 2020-10-19T00:14:46Z Re: Error in Attribute Table? https://community.esri.com/t5/arcmap-questions/error-in-attribute-table/m-p/101944#M263 <HTML><HEAD></HEAD><BODY><P>You have multipart polygons... you can convert them to singlepart using</P><P></P><P><A class="link-titled" href="https://pro.arcgis.com/en/pro-app/tool-reference/data-management/multipart-to-singlepart.htm" title="https://pro.arcgis.com/en/pro-app/tool-reference/data-management/multipart-to-singlepart.htm">Multipart To Singlepart (Data Management)—ArcGIS Pro | Documentation</A>&nbsp;</P><P></P><P>This tool exists in arcmap and arcgis pro.</P><P></P><P>Sometimes shapes are grouped together as one since they share the same/common attributes.&nbsp; Sometimes treating the "collective" as one is useful.&nbsp; Sometimes it is not.&nbsp; You would be advised to keep both versions.</P><P></P><P>The reverse of that tool (aka singlepart to multipart ) is the Dissolve tool</P><P><A class="link-titled" href="https://pro.arcgis.com/en/pro-app/tool-reference/data-management/dissolve.htm" title="https://pro.arcgis.com/en/pro-app/tool-reference/data-management/dissolve.htm">Dissolve (Data Management)—ArcGIS Pro | Documentation</A>&nbsp;</P></BODY></HTML> Mon, 19 Oct 2020 01:17:24 GMT https://community.esri.com/t5/arcmap-questions/error-in-attribute-table/m-p/101944#M263 DanPatterson 2020-10-19T01:17:24Z