Generate lower-case nodes in XML

Question

Hi,
In my PL/SQL procedures, I generate XML files based on SQL queries, like this:
SELECT XMLELEMENT ("web_vpreparations",
XMLAGG(
XMLELEMENT ("web_vpreparation",
XMLFOREST (CODE as "code",
COMMERCIAL_NAME as "commercial_name",
As you can see, I rename my column names to their lower-case equivalents, because the client-side application which processes the XML file expects them to be in lower-case.
I now have a huge view with hundreds of columns and would like to avoid having to rename each one. Is there a chance I can tell the PL/SQL or the SQL to return the XML nodes in lower-case?
I'll appreciate any help on this problem.
Chris.

Answer 1

does XMLTable exist in Oracle 9i, for some of my customers?No. XMLTable was introduced in 10g (not sure the exact version though).
What am I doing wrong?Sorry can't say. I know for sure that it works for 10.2.0.4.0:
SQL> select * from v$version where rownum = 1
BANNER                                                         
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bi
1 row selected.
SQL> select trim(column_value) cv
from xmltable(
'for $i in ora:view("hersteller_x")/ROW[HERSTL=1]/* return element {lower-case($i/name())} {$i/text()}')
CV                                                                             
<mandant>1</mandant>                                                           
<herstl>1</herstl>                                                             
<kurzbez>01FSL</kurzbez>                                                       
<name>SEMICONDUCTOR INC.</name>                                      
<versland>D</versland>                                                         
<urland>US</urland>                                                            
<versweg>4</versweg>                                                           
7 rows selected.