Copy from column to another column in same table

Question

Hi,
Working on EBS Version : 11.5.10.2
Table Name : ASO_QUOTE_HEADERS_ALL
COLUMNS :
QUOTE_STATUS_ID NUMBER
ATTRIBUTE6 VARCHAR2(240 BYTE);
Need to copy from quote_status_id to attribute6 for that quote_header_id
example if quote_status_id = 10 then it should copy in attribute6 = 10 for quote_header_id = 69312
again if changed to quote_status_id = 10077 then it should replace with attribute6 = 10077
for quote_header_id = 69312
i wrote a procedure posted below:
CREATE OR REPLACE procedure SLC_STATUS_CAPTURE (p_quote_header_id IN number) is
BEGIN
UPDATE aso_quote_headers_all SET attribute6 = quote_status_id
WHERE quote_header_id = p_quote_header_id;
end SLC_STATUS_CAPTURE;
then calling this trigger through table level
BEGIN
SLC_STATUS_CAPTURE(:OLD.QUOTE_HEADER_ID);
END;
it is giving an error.
Please i need some help.
Thanks and Regards
Vijay

Answer 1

John Spencer wrote:
As others have mentioned, you cannot change column values in a statement level trigger. Also, you cannot
update the table that the trigger is firing on. If I understand correctly, you want to copy the value of
quote_status_id into attribute6 whenever a row is inserted or updated. If that is correct, then you only need a simple trigger like:
create trigger trigg
before insert or update of aso_quote_headers_all
for each row
begin
:new.attribute6 = :new.quote_status_id;
end;Thought why anybody would want to do this is beyond me - you already have the info
in your attribute6 column - what's the point in simply copying it to another column in
the same table?
Paul...
John