Updating a XML document with a processing instruction

Question

Greetings Guru's
I have a fully functional XML database solution for our new system. The only thing left is for me to update a xml document in the database with a processing instruction to find the style sheet (JAXB strips it out when the XML must go back into the database).
I can update complete nodes and node elements in the xml document using updateXML in a regular update statement, but I do not know how to add the following processing instruction to my documents.
<?xml-stylesheet type="text/xsl" href="/RASWEB/JIT_REPORT.xslt"?>
[pre]
Thanks in advance
Derrick                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               

Answer 1

SQL> var xmltext varchar2(4000)
SQL> --
SQL> begin
  2    :xmlText := '<Hello>World</Hello>';
  3  end;
  4  /
PL/SQL procedure successfully completed.
SQL> drop table t
  2  /
drop table t
ERROR at line 1:
ORA-00942: table or view does not exist
SQL> create table t of xmltype
  2  /
Table created.
SQL> set long 10000
SQL> --
SQL> insert into t values (xmltype(:xmltext))
  2  /
1 row created.
SQL> select *
  2    from t
  3  /
SYS_NC_ROWINFO$
<Hello>World</Hello>
SQL> update t set object_value = updateXML
  2                              (
  3                                object_value,
  4                                '/',
  5                                xmlconcat
  6                                (
  7                                  xmlpi("xml-stylesheet",'type="text/xsl" href="/RASWEB/JIT_REPORT.xslt"'),
  8                                  object_value
  9                                )
10                              )
11  /
1 row updated.
SQL> select * from t
  2  /
SYS_NC_ROWINFO$
<?xml-stylesheet type="text/xsl" href="/RASWEB/JIT_REPORT.xslt"?>
<Hello>World</Hello>
SQL>