Håndtering af nuller ved brug af Oracle XMLType

for en SQL-løsning:

select 
XMLType.createxml(
    package_name.storedProcName('PARAM1', 'PARAM2', 'PARAM3')
) as sresult 
from dual;

der burde undgå konstruktørfejlen.

f.eks.

SQL> select xmltype.createxml(mycur(0)) from dual;

XMLTYPE.CREATEXML(MYCUR(0))
-------------------------------------------------------------------------------


SQL> select xmltype(mycur(0)) from dual;
ERROR:
ORA-06502: PL/SQL: numeric or value error
ORA-06512: at "SYS.XMLTYPE", line 334
ORA-06512: at line 1



no rows selected

x
SQL>