Can not delete the last record , frm-40202 field must be entered

Question

hi ,
i have built a form which contain master and details blocks
the problem is
when i look for a record by executing query on on transaction serial and try to delete this record from the master block it gives me new serial for the transaction and when i try to save it, it says
>frm-40202 field must be entered
where this field is required and i cant save it
although in another form when i delete from the master it gives me the previous record and it works properly
the question is :
why it gives a new serial when i delete the record ??if any one has any ideas pls help me
thank u
------- the master block has a trigger when-create-record
Declare>v_dummy number;
Begin
Select nvl(max(ERNT_NO),0) + 1 >Into v_dummy
From LM_RENT_EXPNMST >Where cmp_no = :LM_RENT_EXPNMST.cmp_no
And brn_no = :LM_RENT_EXPNMST.brn_no>and fiscal_yr = :LM_RENT_EXPNMST.fiscal_yr;
>:LM_RENT_EXPNMST.ERNT_NO := v_dummy;
END;
IF :PARAMETER.RNT_NO IS NOT NULL THEN
     :LM_RENT_EXPNMST.RNT_NO:=:PARAMETER.RNT_NO;
          :LM_RENT_EXPNMST.RNT_YR:=:PARAMETER.RNT_YR;
     :LM_RENT_EXPNMST.CUST_DESC:=:PARAMETER.RNT_ADESC;
END IF;

Answer 1

Hi ayadsufyan,
As it looks Andreas assumption of internal status change was correct. So taking into account this fact I would assume you are doing some data manipulation on the row you are unable to delete.
What I would suggest to do is to put the following code in your KEY-DELREC trigger :
clear_message;
message(:system.record_status);pause;Now when you delete the record you should get the INSERT status of the record. If so it definitely means you are doing some manipulation on the record you are trying to delete. From this point on you will have to pinpoint the offending code.
Best regards.
Edited by: GregorM on May 11, 2013 10:41 AM