Saving the record in multi-record block while updating

Question

Hi gurus
I have a table name PT . Its is master table where PT_TYPE IS unique
desc PT
PT_TYPE VARCHAR2(2) unique,
PT_CODE VARCHAR2(4),This is the detail table on which the form is being designed is meant for insert/update/delete.Insert and delete are working fine.
desc PST
PST_PT_type varchar2(2) unique,
PST_A_code Varchar2(3) unique,
PST_A_desc varchar2(10) The form layout is a multi-record form as below and based on PST table with PT_CODE as non-base table item & PST_PT_TYPE
not displayed but its there in the block.
FORM_LAYOUT
PT_CODE PST_A_CODE PST_A_DESC
ASD          AS          TESTAS
ASD          AD TESTAD
ASD DS TESTDS.
Now the problem is when I am querying record through enter-query mode (say by entering PT_CODE 'ASD') and
change one of the base table items(PST_A_CODE or PST_A_DESC) values and commit it. its says '1 records applied and save'
but when I change ONE OF THE PT_CODE(non-base table item) values it says 3 records applied and saved. as the 3 records
are currently displayed when querying

Answer 1

Hi Craig,
Both below program unit is in the WHEN-VALIDATE-ITEM of NBT item PT_CODE
--this is to check that valid pt_code is entered
PROCEDURE val_pt_code IS
     cursor val_cur is
     select pt_code
     from pt
     where pt_code =:pst.pt_code;
v_dummy varchar2(12);
BEGIN
open val_cur;
fetch val_cur into v_dummy;
if val_cur%notfound then
close val_cur;     
     warn_alert('Error:The Product Code entered does not exists');
     raise form_trigger_failure;
end if;
close val_cur;
END;
--this is to check that particular pt_type value is for the pt_code is selected
PROCEDURE get_pt_type IS
     v_pt_type varchar2(2);
begin
     select pt_type into v_pt_type
     from      pt
     where pt_code = :pst.pt_code;
     :pst.pt_type := v_pt_type;
exception
     when no_data_found then
          warn_alert('Error:The Syllabus Type does not exists');
     raise form_trigger_failure;
end;
--