Oracle date corruption during update

Question

I\'m migrating some data from one oracle schema/table to a new schema/table on the same database.

The migration script does the following:

create tab         


        

Answer 1

I've seen similar things to spence7593, again with Pro*C. It is possible to create invalid dates programmatically using a DBMS_STATS package. Not sure if there is a similar mechanism to reverse that.

create or replace function stats_raw_to_date (p_in raw) return date is
  v_date date;
  v_char varchar2(25);
begin
  dbms_stats.CONVERT_RAW_VALUE(p_in, v_date);
  return v_date;
exception
  when others then return null;
end;
/

select stats_raw_to_date(utl_raw.cast_to_raw(
          chr(120)||chr(110)||chr(11)||chr(18)||chr(13)||chr(0)||chr(16)))
from dual;