Re: Locally Managed Tablespaces

Chip Sat, 22 Mar 2003 03:28:14 -0800

The other pctincrease option that preserves a multiple of the extent size is 100. Similiar to LMT autoallocate extent sizes always being a multiple of 64K.

Have Fun :)

Rachel Carmichael wrote:

pctincrease=0 and set the storage parameters at the tablespace level
and do NOT put storage parameters on the individual objects.
you can "fake" the workings (without the bitmap!) of an LMT by doing
that. Next extent=initial extent, pctincrease=0 will effectively
allocate extents of equal sizes
--- [EMAIL PROTECTED] wrote:
thanks in case I happen to work on a 7.3 database....

what kind of pctincrease should I set? What about the other settings? Just curious.

Ryan
From: "BALA,PRAKASH (HP-USA,ex1)" <[EMAIL PROTECTED]>
Date: 2003/03/21 Fri PM 12:54:41 EST
To: Multiple recipients of list ORACLE-L <[EMAIL PROTECTED]>
Subject: RE: Locally Managed Tablespaces
Once you set to uniform extents, pctincrease will default to 0.

Most Oracle gurus advise to just use uniform extents for all
situations.
-----Original Message-----
Sent: Friday, March 21, 2003 10:59
To: Multiple recipients of list ORACLE-L
This is probably pretty basic, so please keep in mind that Im a
developer

and Im trying to pick up more of the DBA side.

I am assuming that the preferred way to create a tablespace in 8i,

9i is as

follows(this is out of OTN docs)

CREATE TABLESPACE lmtbsb DATAFILE '/u02/oracle/data/lmtbsb01.dbf'

SIZE 50M

EXTENT MANAGEMENT LOCAL UNIFORM SIZE 128K;

When you use Uniform Extents you know longer have to worry about

tablespace

fragmentation correct? You also do not need to worry

minimum,initial,and

next extents correct?

What are some rules of thumb for setting PCTINCREASE(there is

another PCT

setting too right)? A DBA I used to work with said you should

almost always

use zero for PCTINCREASE. Could someone please tell me why? The

default is
like 40?

Is there a time when I should not use Uniform Extents?

Thanks... hope this isnt too basic.
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Re: Locally Managed Tablespaces

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