"Prem K Mehrotra" <premmehrotra_at_hotmail.com> wrote in message news:43441e77.0411190717.376aded7_at_posting.google.com...
> "Access" <idmwarpzone_NOSPAM__at_yahoo.com> wrote in message news:<419d1e62$0$30690$ba620e4c_at_news.skynet.be>...
> > "Prem K Mehrotra" <premmehrotra_at_hotmail.com> wrote in message
> > news:43441e77.0411181346.371091e5_at_posting.google.com...
> > > 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
> >
> > Your UNDO tablespace is too small
> >
> > Matthias
>
> Not really, my undo tablespace is 1800M and only 2.3% of the space is used.
> Reason must be something else.
>
> Prem
Does the table you are selecting from have a CLOB/BLOB field ?
If yes then what is the retention period for that?
Anurag
Received on Fri Nov 19 2004 - 16:51:22 CST
