Getting all of the NEW values from a trigger to store as XML CLOB

Question

Our custom system has a number of tables which are given to us from a centralized reference data system. When data is incorrect or missing, the users have the ability to enter in a change request to the data.
We are looking at storing these changes as XML in CLOB colums to make the storage of the requests more generic. I was given this to work with:
SELECT value(em).getClobVal() AS "XMLTYPE"
FROM table(XMLSequence(Cursor(SELECT *
FROM TABLE_A
WHERE X=WHATEVER))) em;
Now that will give me an XML row for each return row. The problem is, I'm placing this in an AFTER INSERT TRIGGER so I cannot SELECT from the table, I can only use the values as passed in the REFERENCING section.
My problem is, I'd like to make this as generic as possible so I don't have to lay out the columns individually for each table we institute this on (there's about 70 of them).
I'm not sure if I'm explaining this well enough. This is on 10gR2. What I'm ultimately looking for is a generic way to take a row that was just inserted into a table, wrap it in XML tags corresponding to the column name and then insert that info into a CLOB in another table.

Answer 1

hi vittorio
i have a solution but im very sure it is not exact answer to your question . it will definitely help you .
create table temp_type as select * from emp where 1 = 2;
create or replace procedure emp_ins(emp_row emp%rowtype) as
pragma autonomous_transaction;
begin
insert into temp_type(empno,ename) values(emp_row.empno,emp_row.ename);
commit;
end;
create or replace trigger emp_ins_trig before insert on emp for each row
declare
/*  empr emp_types.emprowtype%type;*/
empr emp%rowtype;
begin
  empr.empno := :new.empno;
  empr.ename := :new.ename;
emp_ins(empr);
end;
/unfortunately , in oracle we dont have a facility to access the members of a record or recordset by their position
Such facility is very much there in Visual Basic , similar programming tools.
we can access the members of a recordset by the index position ( here index means the position of the field)