Can't update <field name>; field not updatable. (Error 3113)

Possible causes:

• The specified field is part of a CdbTableDef or dynaset-type CdbRecordset object that cannot be updated. For example, this error occurs if you try to update an AutoNumber field.
  
  
• You executed a query that combines updatable and nonupdatable CdbTableDef objects, and you tried to update one of the fields in the query's results (the resulting dynaset-type CdbRecordset).