Regarding ORA-12801,ORA-01843 error

Question

Hi all,
When I am running the mapping I am getting the
ORA-12801: error signaled in parallel query server P079
ORA-01843: not a valid month error
My mapping was validated and deployed suceesfully.
Please give me the suggestions.
Thanks,
Venkat

Answer 1

Is the source field a date field or a varchar? Sounds like you are hitting a source data error.
Try grabbing the insert (or merge, or whatever) statement from the mapping and running it on its own. If that fails with the same error, then try running the select portion of the statement to debug for the error.
Assuming that you are using a to_Date function and if you are having real trouble finding the data error, you at least know which table the field is being sourced from. Run a little test - something like:
declare
  cursor curs is select the_source_field from the_source_table;
begin
  for rec in curs loop
     declare
        dateval date
     begin
        dateval := to_Date(rec.the_source_field,'yyyymmdd');   --or whatever format mask it is you are using
     exception
         when others then
             dbms_output.put_line('FAILED TO_DATE ON SOURCEVAL: '||rec.the_source_field||' with error: '||substr(sqlerrm,1,150));
     end;
  end loop;
end;Once you know the problems with the data then you can consider how best to deal with them.
Cheers,
Mike