Mysterious missing data - advice please!

Question

Hi Everyone,
I'm having an issue with my oracle 10g database that I hope you can please help with!
Once of my users added data to the organisation table between 3pm and 4pm today.
The autoincrement number changed from 750 to 765 during this time.
After the user logged in and out of the app the data was all completely gone. No errors, nothing.
The autoincrement number remains at 765 though (if you try to add a new record).
For every minute between 3pm and 4pm I ran the following:
select id, org_name from organisation as of timestamp timestamp '2011-05-24 15:00:00' WHERE id > '749';
The result did not change at all between these times (or just prior or just after). There was never a time when there were higher id's than '750'.
I then tried to:
EXECUTE DBMS_LOGMNR.ADD_LOGFILE(logfilename=>'*****',options=>DBMS_LOGMNR.NEW);
for all the redo log files and all the flash recovery log files...
but when I tried to run:
EXECUTE DBMS_LOGMNR.START_LOGMNR(options=>DBMS_LOGMNR.DICT_FROM_ONLINE_CATALOG, STARTTIME => to_date('24-05-2011 15:00:00', 'DD-MM-YYYY HH24:MI:SS'), ENDTIME => to_date('24-05-2011 16:00:00', 'DD-MM-YYYY HH24:MI:SS'));
I just get the error:
ERROR at line 1:
ORA-01291: missing logfile
ORA-06512: at "SYS.DBMS_LOGMNR", line 58
ORA-06512: at line 1
How can I track down the missing data?
Thanks!!!

Answer 1

user11150264 wrote:
The user changes were made via an application so they should have been committed.Err, not necessarily - have you actually checked the application code or tried to recreate this?