Handle Oracle Error from Oracle Forms

Question

Actually I have a form with all types of validation and Id will be auto-generated by forms.
Now if any oracle error occures after pre-insert, auto-generated number will generate but record is not saving.
I want to handle this oracle error in my form and nullify the auto-generated ID forcefully.
Edited by: Sudipto Nag on Sep 16, 2008 12:07 PM

Answer 1

The way we handle database error generally is this:
You should in any case have a NOT NULL constraint on the database column. In the ON-ERROR trigger, we then check for the dbms_error_code value to see, what error message the database returned, after checking for Forms returning the general trigger exception 40735. For example, to trap a NOT NULL constraint voilation, you would do something like this.
if error_code= 40735 then --Forms error code = "Trigger raised unhandled exception".         
  if dbms_error_code in (-1400, -1407) then --mandatory not null column missing     
    --do something, like alerting the user
  elsif dbms_error_code in (<other DBMS error codes goes here>) then
    --do something else
  end if;
end if;I believe this is what you are looking for. Hope it helps.
Regards,
Jacob