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Can you take a closer look at the multiple extents that are produced when doing parallel insert/update.
Since (as you point out) you are using partitioned tables, your insert can only execute as a parallel insert by splitting the data across multiple partitions - so your 'multiple extents' could actually be 'one extent per partition loaded'.
-- Jonathan Lewis Yet another Oracle-related web site: http://www.jlcomp.demon.co.uk Practical Oracle 8i: Building Efficient Databases Publishers: Addison-Wesley Book bound date: 8th Dec 2000 See a first review at: http://www.ixora.com.au/resources/index.htm#practical_8i More reviews at: http://www.jlcomp.demon.co.uk/book_rev.html Lynux wrote in message <8vjaec$1fl3_at_imsp212.netvigator.com>...Received on Thu Nov 23 2000 - 10:49:17 CST
>Are there any ways or initial parameter to make parallel query on index
>scan and retain single query on insert, update?
>
>From previous experience, we can parallel query using index by using
>HARDCODED hints or change the degree of the index (it must be partitioned)
>However, if an insert or update is performed on the table and make the
>index grow beyond its available space. Instantly, several extends (same as
>the index's degree) would also be producted instead of 1 extends at a
>time. If we use degree 1 for the index, then index scan would possibly
>need about 20 - 200 times lower than table scan.
>
>Do anyone got the same experience and/or share your opinions?
>
>Thanks in Advance!