Re: Flashback Query - Sanpshot Too Old Error

premmehrotra_at_hotmail.com (Prem K Mehrotra) wrote in message news:<43441e77.0411171713.1e148417_at_posting.google.com>...
> I am using Oracle 9i, 9.2.0.5 on HP UNIX 11.0. I have 2 GB of UNDO
> table
> space. When I do a flashback query, I get Snapshot too old error:
>
> 1 create table wreports_que_flash
> 2* as select * from wreports_que as of
> timestamp(to_timestamp('17-NOV-2004 00:00:00', 'DD-MON-YYYY
> HH24:MI:SS'))
> SQL> /
> as select * from wreports_que as of
> timestamp(to_timestamp('17-NOV-2004 00:00:00', 'DD-MON-YYYY
> HH24:MI:SS'))
> *
> ERROR at line 2:
> ORA-01555: snapshot too old: rollback segment number with name "" too
> small
> ORA-22924: snapshot too old
>
>
>
> I do not have much database activity. My undo_retention = 604800
> which is seven days.
>
> I have done flashback queries in the past with success. I don't know
> why I am getting this error when I am only accessing a few hours ago
> of data.
>
> Any ideas will be helpful.
>
> Thanks a lot,
>
> Prem

Any ideas?

rem Received on Thu Nov 18 2004 - 15:46:47 CST