Re: ASSM bug: slow INSERT after uncomitted DELETE
Date: Thu, 13 Aug 2009 10:33:49 +0100
"Mladen Gogala" <mladen_at_bogus.email.invalid> wrote in message
> On Mon, 10 Aug 2009 20:37:35 -0700, Noons wrote:
>> Perhaps even more significantly, if you delete only a portion of the
>> table instead of the lot, then the second session's insert is not
>> affected. Normally, I would expect anyone wanting to clear a table to
>> truncate it, as opposed to deleting all rows: truncate is far more
> Unfortunately, in the situations where you want to delete everything
> older than 60 days, truncate is not an option.
It is if you partition by day and use only local indexes ;)
Really, this discussion is only picking up the point that we need to know that each feature has some side effects that may need special consideration.
-- Regards Jonathan Lewis http://jonathanlewis.wordpress.com Author: Cost Based Oracle: Fundamentals http://www.jlcomp.demon.co.uk/cbo_book/ind_book.html The Co-operative Oracle Users' FAQ http://www.jlcomp.demon.co.uk/faq/ind_faq.htmlReceived on Thu Aug 13 2009 - 04:33:49 CDT