Direct patch sqlldr (and insert-append) do allow
indexes - its just that you get slugged a little more
on rollback and redo...
I don't have any metrics to compare - typical usage of
either tends be to the ol' a) drop ind, b) load, c)
redindex
hth
connor
- Martin Kendall <Martin.Kendall_at_Rubus.com> wrote: >
I know that Direct Path of sqlldr does not allow
> Indexes
> so what is the comparative performance of this
> suggestion if
> the given Table is indexed ?
>
> Martin
>
> -----Original Message-----
> Sent: 23 March 2001 09:05
> To: Multiple recipients of list ORACLE-L
>
>
> If you're on 8.0 or higher, try
>
> insert /*+ APPEND */
> into table
> select * from other_table;
>
> where "table" is defined as nologging. Then you
> won't
> hit either redo logs or rollback segments..Its the
> equivalent of a sqlldr direct load
>
> hth
> connor
>
> --- CC Harvest <ccharvest_at_yahoo.com> wrote: > I have
> the following scripts:
> >
> > insert into table
> > select * from table2
> > ;
> >
> > So if use the about bulk statement in my
> > application, and the table2 is big, say 10
> > million records, my concern is that it's
> > going to fail because of the possible rollback
> > segments failure. So then I have to use PL/SQL
> > to create a cursor and commit every 50000 records.
> > What's the disadvantage of this?Will it be much
> > slower
> > than a bulk insert?
> >
> > Can I do it another way: create a stored procedure
> > for this bulk insert, then pin this procedure in
> > memory, does it still have RBS problem?
> >
> > Anyone has similar experience?
> >
> > Thanks in Advance,
> >
> > Chris
> >
> >
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> =====
> Connor McDonald
> http://www.oracledba.co.uk (mirrored at
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>
> "Some days you're the pigeon, some days you're the
> statue"
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> Author: =?iso-8859-1?q?Connor=20McDonald?=
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Received on Mon Mar 26 2001 - 11:57:14 CST
