I'm trying to join a table to a feature class in ArcMap. When using the join function, under joins and relates, an error comes up saying my table is not indexed. When I try to add attribute index to my table I get an error " Underlying DBMS error ODBC Driver 13 SQL server, cannot create index on view because the view is not schema bound". I've tried reformatting my data still no luck. Also tried it in Pro, same errors. Do I need to register the table with a Geodatabase, maybe more a sqlserver error? It is an active table, would that make any difference? Any help would be great!