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Home -> Community -> Mailing Lists -> Oracle-L -> RE: Redo a Tablespace
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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>
The information contained in this email is intended for the personal and confidential use of the addressee only. It may also be privileged information. If you are not the intended recipient then you are hereby notified that you have received this document in error and that any review, distribution or copying of this document is strictly prohibited. If you have received this communication in error, please notify Celltech Group immediately on:
+44 (0)1753 534655, or email 'is_at_celltech.co.uk'
Celltech Group plc
216 Bath Road, Slough, SL1 4EN, Berkshire, UK
Registered Office as above. Registered in England No. 2159282
-- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Maser, Donna (SEA) INET: DonnaMaser_at_chiroscience.com Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists -------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). ------_=_NextPart_001_01C04F15.ABC5B132 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printableReceived on Wed Nov 15 2000 - 09:06:36 CST
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<TITLE>RE: Redo a Tablespace</TITLE>
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<BODY>
<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. 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> 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. Yes to =
#4 and #5. 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). 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. </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. 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. Needless to say I flunked =
about 7 of the 12 rules of</FONT>
<BR><FONT SIZE=3D2>SAFE. Now I want to correct earlier =
mistakes. 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. 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 =
</FONT>
</P>
<P><FONT SIZE=3D2>P.S. Thanks for the 'offline' suggestion...that =
would be easier. </FONT>
</P>
<P><FONT SIZE=3D2><snip></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 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 (SEA)</FONT>
<BR><FONT SIZE=3D2> INET: DonnaMaser_at_chiroscience.com</FONT>
</P>
<P><FONT SIZE=3D2>Fat City Network Services -- (858) =
538-5051 FAX: (858) 538-5051</FONT>
<BR><FONT SIZE=3D2>San Diego, =
California -- 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 =
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