Issues in updating OE_ORDER_HEADERS_ALL attribute columns in trigger

Question

I have the requirement to update the attribute4 of the oe_order_headers_all based on certain data validations. A DFF has been defined on attribute4 as well. When i try to create a before insert trigger on oe_order_headers_all to update the attribute4 values, trigger completes without any errors, but the attribute4 is not getting updated with the data.
Is there any restriction to insert the values on attribute columns of the Oracle base tables? Because when i tried the after update trigger the attribute columns could retain the values.
Can somebody help me out on this issue?

Answer 1

Create Or Replace Trigger OE_HEADER_TRIG_TEST
Before insert
ON OE_ORDER_HEADERS_ALL
REFERENCING NEW AS NEW OLD AS OLD
FOR EACH ROW
declare
v_customer_number ra_customers.customer_number%type;
v_ship_to_org_id oe_order_headers_all.ship_to_org_id%type ;
v_country_code varchar2(50);
begin
v_ship_to_org_id := :NEW.ship_to_org_id;
select rac.customer_number,
country
into v_customer_number,
v_country_code
from ra_addresses_all raa,
ra_site_uses_all ras,
ra_customers rac
where ras.address_id = raa.address_id
and ras.site_use_id = v_ship_to_org_id
and ras.primary_flag = 'Y'
and raa.customer_id = rac.customer_id;
:new.attribute4 := v_customer_number;
:new.attribute5 := v_country_code;
exception
when others then
raise_application_error(-20202,'Error in trigger'||sqlerrm);
end;
**I have verified that attributes are getting assigned in the trigger but is not stored in the table.