Is there a way to check if the rollback segment is in use first?
I use following script to see which rollbacks are in use...and then shrink to certain size if it requires to do that... select substr(a.os_user_name,1,8) "OS User" ,substr(e.username,1,8) "DB User" , substr(b.object_name,1,30) "Object Name" , substr(b.object_type,1,10) "Type" , substr(c.segment_name,1,30) "RBS" , e.process "PROCESS" , substr(d.used_urec,1,8) "# of Records" from v$locked_object a , dba_objects b , dba_rollback_segs c , v$transaction d , v$session e where a.object_id = b.object_id and a.xidusn = c.segment_id and a.xidusn = d.xidusn and a.xidslot = d.xidslot and d.addr = e.taddr / Regards Rafiq Reply-To: [EMAIL PROTECTED] To: Multiple recipients of list ORACLE-L <[EMAIL PROTECTED]> Date: Tue, 26 Feb 2002 11:38:28 -0800 Is there a way to tell if anyone is reading from the rollback segments? I would like to manually issue 'alter rollback segment XXX shrink;', but do not want to do so if there are users reading read consistent data from the rollback space (thus giving them the ORA-01555 error). Is there a way to check if the rollback segment is in use first? Can I try to take it offline? Will it fail if there is someone reading from it? -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Glenn Travis 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). 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).
