ORA-19020: invalid dereference of XMLType columns
Cause: An attempt was made to dereference the attributes of an XMLType column which is not part of a base table
Action: You can only dereference the attributes of a base table XMLType column
Cause: An attempt was made to dereference the attributes of an XMLType column which is not part of a base table
Action: You can only dereference the attributes of a base table XMLType column
