How to use a value as column name in Triggers?

Question

Hello All!!!!!
How can i use a column value instead of field name in triggers? e.g. table X has one column and having following data.
COL1*
Id
Name
Contact No.
now in triggers i want to use "Id" instead of :new.id, is it possible?
Any solution?

Answer 1

actually i am trying to write a trigger on lets say Table2 and i dont want to specify the column name in the trigger.
CREATE OR REPLACE TRIGGER TR_AIUDR_002
AFTER UPDATE
ON mytable
FOR EACH ROW
DECLARE
CURSOR C IS
SELECT * FROM t_table_columns;
BEGIN
IF UPDATING then
FOR I IN C LOOP
IF *:new.column_name <> :OLD.column_name* THEN
insert into....
END IF;
END LOOP;
END IF;
END TR_AIUDR_002;
instead of :new.column_name <> :old.column_name i want to compare on the base of loop column
Edited by: rha2 on Jan 31, 2009 7:04 PM