Re: Delete performance

I think that you better delete all indexes that are not used in the selection of the records.
Updating the indexes will add a long time to the run.

Yechiel Adar
Mehish
----- Original Message -----
To: Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com> Sent: Thursday, August 01, 2002 4:03 PM

> Hi all:
>
> Someone at my shop wants to delete about 20% of roes
> in a table (200000 rows out of a million). He wants to
> set a commit frequency (like every 1000 records or
> so)
> to keep the rbs under control. I am not aware of any
> easy way to do it other then writing a procedure, but
> I may be missing something here. Is there any simple
> way to accomplish this?
>
> Also I have suggested instead of deleting 20% of the
> rows, create a new table as a select and insert the
> rest of the rows into it (then rebuild the indices and
> rename). This can be done in nologging mode, without
> redo logs and rbs segments. Is this a good idea to
> try?
>
> thanks for any info
>
> Gene
>
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-- 
Author: Yechiel Adar
  INET: adar76_at_inter.net.il

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