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RE: Problem in setting PCTFREE and PCTUSED

From: Christopher Spence <cspence_at_FuelSpot.com>
Date: Tue, 02 Oct 2001 08:42:04 -0700
Message-ID: <F001.0039ECF1.20011002080525@fatcity.com>

You can not make an intelligent guess at what these values should be without knowing:

  1. Average Row Length
  2. Blocks Size
  3. Average Rows/Block
  4. How active the table is for insert, deletes, updates.
  5. Average size of updates (1,2,3 columns, 1 byte, 10 bytes)

Without these pieces of information, you just as well keep the defaults, it is just mere guessing to set them to anything else.

"Do not criticize someone until you walked a mile in their shoes, that way when you criticize them, you are a mile a way and have their shoes."

Christopher R. Spence
Oracle DBA
Phone: (978) 322-5744
Fax: (707) 885-2275

Fuelspot
73 Princeton Street
North, Chelmsford 01863  

-----Original Message-----
Sent: Tuesday, October 02, 2001 7:40 AM
To: Multiple recipients of list ORACLE-L

Hello !
After having defined all the tables, now I have to parametrize each table. I have some tables that every day must be deleted and reloaded through sql loader.
I think to set PCTFREE = 0, but I don't know if I have to specify a particular value for PCTUSED.
Anybody can give an advice about which value set PCTUSED ?

Thanks in advance,
Andrea
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Author: Quaglio Andrea
  INET: Andrea.Quaglio_at_semagroup.it

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Author: Christopher Spence
  INET: cspence_at_FuelSpot.com
Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
San Diego, California        -- Public Internet access / Mailing Lists
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