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RE: Redo a Tablespace

From: Burton, Laura L. <BurtonL_at_prismplus.com>
Date: Wed, 15 Nov 2000 09:06:36 -0600
Message-Id: <10681.122114@fatcity.com>


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It comes from an article 'How to Stop Defragmenting and Start Living: The Definitive Word on Fragmentation' by B. Himatsingka and J. Loaiza from the Oracle Corporation.

SAFE = Simple Algorithm for Fragmentation Elimination

I made a script which contain queries for the rules referenced in the article. I'll send it to you if you want it.

Laura

-----Original Message-----
From: Maser, Donna (SEA) [mailto:DonnaMaser_at_chiroscience.com] Sent: Tuesday, November 14, 2000 2:41 PM To: Multiple recipients of list ORACLE-L Subject: RE: Redo a Tablespace

Laura,
  What are the 'ofSAFE' rules that you refer to? - Donna

-----Original Message-----
Sent: Tuesday, November 14, 2000 5:06 AM To: Multiple recipients of list ORACLE-L

Thank you for responding to my question. Yes to #4 and #5. An example of this is creating a user REFERENCE to own all the reference (static) tables and have the tables located in one tablespace called REFERENCE_DATA (one for indexes as well). I read in a book awhile back about how recovery might be easier if a user is contained in one tablespace because there is not a export option for tablespace.

When I created the tablespaces that I have I didn't put a whole lot of thought into the size, extents, etc. It's been about a year now since I started this, and now I am finding articles which address issues on tuning and fragmentation. Needless to say I flunked about 7 of the 12 rules of SAFE. Now I want to correct earlier mistakes. It would probably be easier to just call the tablespace something else and cut out some of the steps I listed, but I like the naming convention I'm using and want to use the same names.

I really appreciate this list and the people like you who respond. Although sometimes we get a little 'testy', it is still a great window of the 'real' world that classes just never seem to get too.

Sorry for the book....Laura

P.S. Thanks for the 'offline' suggestion...that would be easier.

<snip>

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-- 
Author: Maser, Donna  (SEA)
  INET: DonnaMaser_at_chiroscience.com

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<P><FONT SIZE=3D2>It comes from an article 'How to Stop Defragmenting =
and Start Living: The Definitive Word on Fragmentation' by B. = Himatsingka and J. Loaiza from the Oracle Corporation.</FONT></P>
<P><FONT SIZE=3D2>SAFE =3D Simple Algorithm for Fragmentation =
Elimination</FONT>
</P>

<P><FONT SIZE=3D2>I made a script which contain queries for the rules =
referenced in the article.&nbsp; I'll send it to you if you want = it.</FONT>
</P>

<P><FONT SIZE=3D2>Laura</FONT>
</P>

<P><FONT SIZE=3D2>-----Original Message-----</FONT>
<BR><FONT SIZE=3D2>From: Maser, Donna (SEA) [<A =
HREF=3D"mailto:DonnaMaser_at_chiroscience.com">mailto:DonnaMaser_at_chiroscien= ce.com</A>]</FONT>
<BR><FONT SIZE=3D2>Sent: Tuesday, November 14, 2000 2:41 PM</FONT>
<BR><FONT SIZE=3D2>To: Multiple recipients of list ORACLE-L</FONT>
<BR><FONT SIZE=3D2>Subject: RE: Redo a Tablespace</FONT>
</P>
<BR>

<P><FONT SIZE=3D2>Laura,</FONT>
<BR><FONT SIZE=3D2>&nbsp; What are the 'ofSAFE' rules that you refer =
to?</FONT>
<BR><FONT SIZE=3D2>- Donna</FONT>
</P>

<P><FONT SIZE=3D2>-----Original Message-----</FONT>
<BR><FONT SIZE=3D2>Sent: Tuesday, November 14, 2000 5:06 AM</FONT>
<BR><FONT SIZE=3D2>To: Multiple recipients of list ORACLE-L</FONT>
</P>
<BR>
<BR>

<P><FONT SIZE=3D2>Thank you for responding to my question.&nbsp; Yes to =
#4 and #5.&nbsp; An example of</FONT>
<BR><FONT SIZE=3D2>this is creating a user REFERENCE to own all the =
reference (static) tables</FONT>
<BR><FONT SIZE=3D2>and have the tables located in one tablespace called =
REFERENCE_DATA (one for</FONT>
<BR><FONT SIZE=3D2>indexes as well).&nbsp; I read in a book awhile back =
about how recovery might be</FONT>
<BR><FONT SIZE=3D2>easier if a user is contained in one tablespace =
because there is not a</FONT>
<BR><FONT SIZE=3D2>export option for tablespace.&nbsp; </FONT>
</P>

<P><FONT SIZE=3D2>When I created the tablespaces that I have I didn't =
put a whole lot of</FONT>
<BR><FONT SIZE=3D2>thought into the size, extents, etc.&nbsp; It's been =
about a year now since I</FONT>
<BR><FONT SIZE=3D2>started this, and now I am finding articles which =
address issues on tuning</FONT>
<BR><FONT SIZE=3D2>and fragmentation.&nbsp; Needless to say I flunked =
about 7 of the 12 rules of</FONT>
<BR><FONT SIZE=3D2>SAFE.&nbsp; Now I want to correct earlier =
mistakes.&nbsp; It would probably be easier</FONT>
<BR><FONT SIZE=3D2>to just call the tablespace something else and cut =
out some of the steps I</FONT>
<BR><FONT SIZE=3D2>listed, but I like the naming convention I'm using =
and want to use the same</FONT>
<BR><FONT SIZE=3D2>names.</FONT>
</P>

<P><FONT SIZE=3D2>I really appreciate this list and the people like you =
who respond.&nbsp; Although</FONT>
<BR><FONT SIZE=3D2>sometimes we get a little 'testy', it is still a =
great window of the 'real'</FONT>
<BR><FONT SIZE=3D2>world that classes just never seem to get =
too.</FONT>
</P>

<P><FONT SIZE=3D2>Sorry for the book....Laura&nbsp;&nbsp;&nbsp;&nbsp; =
</FONT>
</P>

<P><FONT SIZE=3D2>P.S.&nbsp; Thanks for the 'offline' suggestion...that =
would be easier. </FONT>
</P>

<P><FONT SIZE=3D2>&lt;snip&gt;</FONT>
</P>
<BR>
<BR>

<P><FONT SIZE=3D2>The information contained in this email is intended =
for the</FONT>
<BR><FONT SIZE=3D2>personal and confidential use of the addressee only. =
It may</FONT>
<BR><FONT SIZE=3D2>also be privileged information. If you are not the =
intended</FONT>
<BR><FONT SIZE=3D2>recipient then you are hereby notified that you have =
received</FONT>
<BR><FONT SIZE=3D2>this document in error and that any review, =
distribution or</FONT>
<BR><FONT SIZE=3D2>copying of this document is strictly prohibited. If =
you have</FONT>
<BR><FONT SIZE=3D2>received&nbsp; this communication in error, please =
notify Celltech</FONT>
<BR><FONT SIZE=3D2>Group immediately on:</FONT>
</P>

<P><FONT SIZE=3D2>+44 (0)1753 534655, or email =
'is_at_celltech.co.uk'</FONT>
</P>

<P><FONT SIZE=3D2>Celltech Group plc</FONT>
<BR><FONT SIZE=3D2>216 Bath Road, Slough, SL1 4EN, Berkshire, UK</FONT>
</P>

<P><FONT SIZE=3D2>Registered Office as above. Registered in England No. =
2159282</FONT>
<BR><FONT SIZE=3D2>-- </FONT>
<BR><FONT SIZE=3D2>Please see the official ORACLE-L FAQ: <A =
HREF=3D"http://www.orafaq.com" = TARGET=3D"_blank">http://www.orafaq.com</A></FONT>
<BR><FONT SIZE=3D2>-- </FONT>
<BR><FONT SIZE=3D2>Author: Maser, Donna&nbsp; (SEA)</FONT>
<BR><FONT SIZE=3D2>&nbsp; INET: DonnaMaser_at_chiroscience.com</FONT>
</P>

<P><FONT SIZE=3D2>Fat City Network Services&nbsp;&nbsp;&nbsp; -- (858) =
538-5051&nbsp; FAX: (858) 538-5051</FONT>
<BR><FONT SIZE=3D2>San Diego, =
California&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; -- Public Internet = access / Mailing Lists</FONT>
<BR><FONT =
SIZE=3D2>---------------------------------------------------------------= -----</FONT>
<BR><FONT SIZE=3D2>To REMOVE yourself from this mailing list, send an =
E-Mail message</FONT>
<BR><FONT SIZE=3D2>to: ListGuru_at_fatcity.com (note EXACT spelling of =
'ListGuru') and in</FONT>
<BR><FONT SIZE=3D2>the message BODY, include a line containing: UNSUB =
ORACLE-L</FONT>
<BR><FONT SIZE=3D2>(or the name of mailing list you want to be removed =
Received on Wed Nov 15 2000 - 09:06:36 CST

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