works and generates redo
-----Original Message-----
Sent: Wednesday, November 05, 2003 2:04 PM
To: Multiple recipients of list ORACLE-L
Yes, direct-path load works on IOTs, at least in 9.2 running in Solaris 2.8.
Yong Huang
- Igor Neyman <ineyman_at_perceptron.com> wrote:
> Unfortunately my source is another table.
> By the way (btw.), will " sqlldr direct=true" work with IOT?
>
> "m.b" - may be.
>
> Igor Neyman, OCP DBA
> ineyman_at_perceptron.com
>
>
>
> -----Original Message-----
> Yong Huang
> Sent: Wednesday, November 05, 2003 12:25 PM
> To: Multiple recipients of list ORACLE-L
>
> I see. Sorry for misreading.
>
> How about direct path load? sqlldr direct=true. But this means your data
> source
> is on the filesystem.
>
> What is M.b.?
>
> Yong Huang
>
> --- Igor Neyman <ineyman_at_perceptron.com> wrote:
> > Yong,
> >
> > M.b. my question was not clear.
> > I know, "nologging" doesn't work with IOTs.
> > What I'd like to know, if there are any "tricks" (similar to
> > direct-path) to minimize undo/redo when inserting into IOT.
> >
> > Igor Neyman, OCP DBA
> > ineyman_at_perceptron.com
> >
> >
> >
> > -----Original Message-----
> > Yong Huang
> > Sent: Wednesday, November 05, 2003 9:49 AM
> > To: Multiple recipients of list ORACLE-L
> >
> > Hi, Igor,
> >
> > Direct-path insert does not work for IOTs. This is documented in SQL
> > Reference
> > for INSERT.
> >
> > Whether it works for a table without NOLOGGING set (i.e. LOGGING) is
> not
> > clear
> > to me. Documentation says the table has to be NOLOGGING, or its
> > tablespace has
> > to be so. But Tom Kyte seems to show us that as long as you say INSERT
> > /*+
> > APPEND */ SELECT, there won't be redo (except for the minimum data
> > dictionary
> > change), regardless of the table logging setting. See his demo at
> > http://groups.google.com/groups?selm=a3k2kp08q5%40drn.newsguy.com
> (that
> > message
> > was not intended to prove my observation). If somebody reads that
> > differently,
> > please correct me.
> >
> > Yong Huang
> >
> > --- Igor Neyman <ineyman_at_perceptron.com> wrote:
> > > As it was recently discussed,
> > >
> > > Insert /*+ append */ into <destination_table> select * from
> > > <source_table>
> > >
> > > will produce minimum redo/undo if <destination_table> specified as
> > > "nologging".
> > >
> > >
> > > But, what if <destination_table> is index-organized table?
> > > Is it possible to achieve the same results (in regards to amount of
> > > redo/undo)?
> > >
> > > Igor Neyman, OCP DBA
> > > ineyman_at_perceptron.com
> >
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Received on Wed Nov 05 2003 - 13:44:25 CST
