Re: Delete performance

Gene,

afaik there is no direct possibility.

One way around may be:
DELETE FROM table1 WHERE ('your 20% condition') AND rownum <1001; commit;
DELETE FROM table1 WHERE ('your 20% condition') AND rownum <1001; commit;
....
until all rows are deleted

of course this may be written in plsql with checks SQL%ROWCOUNT after each delete.

Alexandre

• 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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-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: Alexandre Gorbatchev
  INET: alexandre.gorbatchev_at_avermann.de

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