Oracle Solution for Error ora-19035

ORA-19035: Invalid select item of the query in newContextFromHierarchy()

What triggered the Error:

e query does not have a number select item followed by an XMLType select item only.

What should we do to fix it:

ke sure the result set of the query used in the newContextFromHierarchy() must have only two selected items: the first item must be number type and the second item must be XMLType.