How to insert the data even the trigger returned null

Question

Hi Gurus,
I have a question regarding on how to insert the record even the condition being used by a "before insert trigger" returned null.
The scenario is:
2 tables have the same structure:
Table A (Name varchar2 (100), No Number)
Table B (Name_1 varchar2 (100), No Number)
A script is using to load the data into table A daily, and a “before insert trigger” is being used to get the value for A.Name = B.Name whenever the condition A.No equals to B.No.
If the B.No exists, then the trigger work fine, otherwise the records will be rejected, this is not the way we wanted, so I just wonder, is there any way to load all the data to the other fields but still using this trigger ?
Thanks,
Tran

Answer 1

Either amend the select in the trigger that gets the name value to not raise a NO_DATA_FOUND exception (e.g. change "select name..." to "select min(name)..." ) or handle the NO_DATA_FOUND exception in an exception handler.
e.g.
EXCEPTION
  WHEN no_data_found THEN
    :new.name = 'where the streets have no name';