SELECT segment_name, USN,EXTENTS,RSSIZE,HWMSIZE,optsize,xacts,aveactive,WRAPS,shrinks FROM V$ROLLSTAT, dba_rollback_segs where usn=segment_id xacts =1 is in use. otherwise it is 0. oracle 8.1.6 you can take an active rollback segment offline, but also kill the transaction. 8.17 supposed to fix the bug. I assume it will let the transaction finished.
Joan Glenn Travis wrote: > > 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). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Joan Hsieh 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).
