Why would you need coalesce at all?. My understanding that if Oracle cannot find contiguous free space it try coalesce itself.
Alex Hillman > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Mohammad > Rafiq > Sent: Tuesday, February 12, 2002 4:53 PM > To: Multiple recipients of list ORACLE-L > Subject: RE: Rollback Segment Problem > > > Jerry, > Thanks for sharing script. We might have better systems as timing > was never > be a issue. I just tested my script on 2 systems and it ran between 34.5 > mseconds to 4.65 seconds...and on the basis of it is results we > coalesce all > such tablespaces. I prefer to keep pctincrease of tablespaces as > 0(zero) and > manually coalesing as and when it is required.... > > So have you ran your deletion job after coalesing or not? > > Regards > Rafiq > > > > > To: <[EMAIL PROTECTED]> > CC: <[EMAIL PROTECTED]> > Date: Tue, 12 Feb 2002 15:28:41 -0600 > > Rafiq, > > While your script provides a lot of good information, it sure is > slow on my > system. It took 1:44 minutes while my script below took 420 > mseconds. I was > really surprised as my script has a self-join. Then I checked out > dba_free_space_coalesced. It sure is complicated as it calls on two other > views and a table. > > select a.tablespace_name, count(a.tablespace_name) "ContinguousFreeBlocks" > from dba_free_space a, dba_free_space b > where a.tablespace_name = b.tablespace_name > and a.file_id = b.file_id > and a.block_id = b.block_id + b.Blocks > group by a.tablespace_name; > > If ContinguousFreeBlocks is > 10, I coalesce. > > Jerry Whittle > ACIFICS DBA > NCI Information Systems Inc. > [EMAIL PROTECTED] > 618-622-4145 > > > -----Original Message----- > > From: Mohammad Rafiq [SMTP:[EMAIL PROTECTED]] > > > > Is your tablespace fragmented as it is not finding contingous extent .. > > TRy to coalesce your subject tablespace and try... > > > > you can use following script to check whether coalesing is required or > not.. > > If percent is < 100 then coalesce it.. > > > > select substr(tablespace_name,1,10)TS_NAME,total_extents > > "Total_Extnts",extents_coalesced,round(percent_extents_coalesced,0) > > from dba_free_space_coalesced > > order by tablespace_name > > / > > > > HTH > > Regards > > Rafiq > > > > > > > MOHAMMAD RAFIQ > > > _________________________________________________________________ > Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp. -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Mohammad Rafiq INET: [EMAIL PROTECTED] 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: [EMAIL PROTECTED] (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). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Alex Hillman INET: [EMAIL PROTECTED] 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: [EMAIL PROTECTED] (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).
