RE: Partitioning Questions

From: Johnston, Tim <TJohnston_at_quallaby.com>
Date: Wed, 05 Dec 2001 15:00:24 -0800
Message-ID: <F001.003D61CC.20011205134017@fatcity.com>

Harvinder...

  What is the access patterns of the queries that will be using these tables... Knowing how the data will be accessed is am important factor in determining how to set this stuff up... i.e. If your data is historical in nature and the queries typically access data for via time periods, then a range partition by date is an excellent choice... It all depends on the distribution of your data and how it will be accessed...

Tim

-----Original Message-----

Sent: Wednesday, December 05, 2001 2:35 PM To: Multiple recipients of list ORACLE-L

Hi,

    The system is Oracle 9i on Sun 2.8

1. Which partitioning is better to use HASH or RANGE. Do there is some overhead for oracle to calculate the hash number (hash partitioning) to find the particular partition. We need to partition 2 tables of sizes 175G and 162G

2 We have about 10 72G hard drives and 22 9G Hard Drives

   How many partitions to use (does this number depends upon number of hard disks).    

3) What should be the ideal size of datafiles.

Thanks
-Harvinder
  

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Author: Harvinder Singh
  INET: Harvinder.Singh_at_MetraTech.com

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Author: Johnston, Tim
  INET: TJohnston_at_quallaby.com

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