RE: Rollback Segs
Which database version are you using? as long as I know, at least on Oracle 8.0.6 you can not specify which rollback segment a particular transaction should use. We disable all rollback segments and only enable those which we know won't make big updates / deletes crash. -Mensaje original-De: venkat Rama [mailto:[EMAIL PROTECTED]Enviado el: miércoles, 16 de julio de 2003 6:34Para: Multiple recipients of list ORACLE-LAsunto: Rollback Segs Hi Friends, I have 150Gb database with 30 rollback segs with optimal settings!! for normal operations no problems!! But we are doing massive updates for some ofbig tables!! So we are using vb programs and connecting to the database thru odbc dsn. My first question is how to set transaction use rollback segment rbs_big? I tried to set as first stmt, but its not using rbs_big segment, its using some other rollback segment. Is that good idea to make all my rollback segs maxextents unlimited to avoid maxextents reached error?? I have lot of rbs space nearly 10Gb. I saw one time, one of my rbs segment extented 2gb and failed transaction with maxextents reached with 5m initial and next, minextents 20 and optimal 100M. Any help will be appreciated Thanks venkat. Do you Yahoo!?SBC Yahoo! DSL - Now only $29.95 per month!
RE: Rollback Segs
set transaction use rollback segment only works if it's the first statement in your transaction, an easy way to make sure this is the case is to issue a commit directly before issuing this statement. I believe this has been a feature of Oracle since way back in version 7 (Correct me if I'm wrong). Hope this helps. Cheers Lee -Original Message-From: Fermin Bernaus [mailto:[EMAIL PROTECTED]Sent: 16 July 2003 09:09To: Multiple recipients of list ORACLE-LSubject: RE: Rollback Segs Which database version are you using? as long as I know, at least on Oracle 8.0.6 you can not specify which rollback segment a particular transaction should use. We disable all rollback segments and only enable those which we know won't make big updates / deletes crash. -Mensaje original-De: venkat Rama [mailto:[EMAIL PROTECTED]Enviado el: miércoles, 16 de julio de 2003 6:34Para: Multiple recipients of list ORACLE-LAsunto: Rollback Segs Hi Friends, I have 150Gb database with 30 rollback segs with optimal settings!! for normal operations no problems!! But we are doing massive updates for some ofbig tables!! So we are using vb programs and connecting to the database thru odbc dsn. My first question is how to set transaction use rollback segment rbs_big? I tried to set as first stmt, but its not using rbs_big segment, its using some other rollback segment. Is that good idea to make all my rollback segs maxextents unlimited to avoid maxextents reached error?? I have lot of rbs space nearly 10Gb. I saw one time, one of my rbs segment extented 2gb and failed transaction with maxextents reached with 5m initial and next, minextents 20 and optimal 100M. Any help will be appreciated Thanks venkat. Do you Yahoo!?SBC Yahoo! DSL - Now only $29.95 per month! This e-mail message (including any attachment) is intended only for the personal use of the recipient(s) named above. This message is confidential and may be legally privileged. If you are not an intended recipient, you may not review, copy or distribute this message. If you have received this communication in error, please notify us immediately by e-mail and delete the original message. Any views or opinions expressed in this message are those of the author only. Furthermore, this message (including any attachment) does not create any legally binding rights or obligations whatsoever, which may only be created by the exchange of hard copy documents signed by a duly authorised representative of Hutchison 3G UK Limited.
RE: Rollback Segs
Yes you are right, sorry but I made a mistake, since we are using Baan IVc4 which works against Oracle we have no means to interfere with its transactions when they are commited to Oracle and we can not modify them so that it uses a specific rollback segment, so the only way for us to do it is to disable all except the one we want it to use. -Mensaje original-De: Lee Cullip [mailto:[EMAIL PROTECTED]Enviado el: miércoles, 16 de julio de 2003 10:54Para: Multiple recipients of list ORACLE-LAsunto: RE: Rollback Segs set transaction use rollback segment only works if it's the first statement in your transaction, an easy way to make sure this is the case is to issue a commit directly before issuing this statement. I believe this has been a feature of Oracle since way back in version 7 (Correct me if I'm wrong). Hope this helps. Cheers Lee -Original Message-From: Fermin Bernaus [mailto:[EMAIL PROTECTED]Sent: 16 July 2003 09:09To: Multiple recipients of list ORACLE-LSubject: RE: Rollback Segs Which database version are you using? as long as I know, at least on Oracle 8.0.6 you can not specify which rollback segment a particular transaction should use. We disable all rollback segments and only enable those which we know won't make big updates / deletes crash. -Mensaje original-De: venkat Rama [mailto:[EMAIL PROTECTED]Enviado el: miércoles, 16 de julio de 2003 6:34Para: Multiple recipients of list ORACLE-LAsunto: Rollback Segs Hi Friends, I have 150Gb database with 30 rollback segs with optimal settings!! for normal operations no problems!! But we are doing massive updates for some ofbig tables!! So we are using vb programs and connecting to the database thru odbc dsn. My first question is how to set transaction use rollback segment rbs_big? I tried to set as first stmt, but its not using rbs_big segment, its using some other rollback segment. Is that good idea to make all my rollback segs maxextents unlimited to avoid maxextents reached error?? I have lot of rbs space nearly 10Gb. I saw one time, one of my rbs segment extented 2gb and failed transaction with maxextents reached with 5m initial and next, minextents 20 and optimal 100M. Any help will be appreciated Thanks venkat. Do you Yahoo!?SBC Yahoo! DSL - Now only $29.95 per month!This e-mail message (including any attachment) is intended only for the personal use of the recipient(s) named above. This message is confidential and may be legally privileged. If you are not an intended recipient, you may not review, copy or distribute this message. If you have received this communication in error, please notify us immediately by e-mail and delete the original message.Any views or opinions expressed in this message are those of the author only. Furthermore, this message (including any attachment) does not create any legally binding rights or obligations whatsoever, which may only be created by the exchange of hard copy documents signed by a duly authorised representative of Hutchison 3G UK Limited.
RE: Rollback Segs
I think that's probably the case with most third party applications, if developers haven't coded their apps to use a large rollback segment for certain transactions (which I find is the case with most developers ;-) ) then the only option is to turn off all but the large rollback seg. Cheers Lee -Original Message-From: Fermin Bernaus [mailto:[EMAIL PROTECTED]Sent: 16 July 2003 11:19To: Multiple recipients of list ORACLE-LSubject: RE: Rollback Segs Yes you are right, sorry but I made a mistake, since we are using Baan IVc4 which works against Oracle we have no means to interfere with its transactions when they are commited to Oracle and we can not modify them so that it uses a specific rollback segment, so the only way for us to do it is to disable all except the one we want it to use. -Mensaje original-De: Lee Cullip [mailto:[EMAIL PROTECTED]Enviado el: miércoles, 16 de julio de 2003 10:54Para: Multiple recipients of list ORACLE-LAsunto: RE: Rollback Segs set transaction use rollback segment only works if it's the first statement in your transaction, an easy way to make sure this is the case is to issue a commit directly before issuing this statement. I believe this has been a feature of Oracle since way back in version 7 (Correct me if I'm wrong). Hope this helps. Cheers Lee -Original Message-From: Fermin Bernaus [mailto:[EMAIL PROTECTED]Sent: 16 July 2003 09:09To: Multiple recipients of list ORACLE-LSubject: RE: Rollback Segs Which database version are you using? as long as I know, at least on Oracle 8.0.6 you can not specify which rollback segment a particular transaction should use. We disable all rollback segments and only enable those which we know won't make big updates / deletes crash. -Mensaje original-De: venkat Rama [mailto:[EMAIL PROTECTED]Enviado el: miércoles, 16 de julio de 2003 6:34Para: Multiple recipients of list ORACLE-LAsunto: Rollback Segs Hi Friends, I have 150Gb database with 30 rollback segs with optimal settings!! for normal operations no problems!! But we are doing massive updates for some ofbig tables!! So we are using vb programs and connecting to the database thru odbc dsn. My first question is how to set transaction use rollback segment rbs_big? I tried to set as first stmt, but its not using rbs_big segment, its using some other rollback segment. Is that good idea to make all my rollback segs maxextents unlimited to avoid maxextents reached error?? I have lot of rbs space nearly 10Gb. I saw one time, one of my rbs segment extented 2gb and failed transaction with maxextents reached with 5m initial and next, minextents 20 and optimal 100M. Any help will be appreciated Thanks venkat. Do you Yahoo!?SBC Yahoo! DSL - Now only $29.95 per month!This e-mail message (including any attachment) is intended only for the personal use of the recipient(s) named above. This message is confidential and may be legally privileged. If you are not an intended recipient, you may not review, copy or distribute this message. If you have received this communication in error, please notify us immediately by e-mail and delete the original message.Any views or opinions expressed in this message are those of the author only. Furthermore, this message (including any attachment) does not create any legally binding rights or obligations whatsoever, which may only be created by the exchange of hard copy documents signed by a duly authorised representative of Hutchison 3G UK Limited.
Re: Rollback Segs
Well, the other option is to start developing apps and test them using larger data sets then available in EMP and DEPT tables. Even with full table scans, everything seems to work miraculously on those tables. On 2003.07.16 08:59, Lee Cullip wrote: I think that's probably the case with most third party applications, if developers haven't coded their apps to use a large rollback segment for certain transactions (which I find is the case with most developers ;-) ) then the only option is to turn off all but the large rollback seg. Cheers Lee -Original Message- Sent: 16 July 2003 11:19 To: Multiple recipients of list ORACLE-L Yes you are right, sorry but I made a mistake, since we are using Baan IVc4 which works against Oracle we have no means to interfere with its transactions when they are commited to Oracle and we can not modify them so that it uses a specific rollback segment, so the only way for us to do it is to disable all except the one we want it to use. -Mensaje original- De: Lee Cullip [mailto:[EMAIL PROTECTED] Enviado el: miércoles, 16 de julio de 2003 10:54 Para: Multiple recipients of list ORACLE-L Asunto: RE: Rollback Segs set transaction use rollback segment only works if it's the first statement in your transaction, an easy way to make sure this is the case is to issue a commit directly before issuing this statement. I believe this has been a feature of Oracle since way back in version 7 (Correct me if I'm wrong). Hope this helps. Cheers Lee -Original Message- Sent: 16 July 2003 09:09 To: Multiple recipients of list ORACLE-L Which database version are you using? as long as I know, at least on Oracle 8.0.6 you can not specify which rollback segment a particular transaction should use. We disable all rollback segments and only enable those which we know won't make big updates / deletes crash. -Mensaje original- De: venkat Rama [mailto:[EMAIL PROTECTED] Enviado el: miércoles, 16 de julio de 2003 6:34 Para: Multiple recipients of list ORACLE-L Asunto: Rollback Segs Hi Friends, I have 150Gb database with 30 rollback segs with optimal settings!! for normal operations no problems!! But we are doing massive updates for some of big tables!! So we are using vb programs and connecting to the database thru odbc dsn. My first question is how to set transaction use rollback segment rbs_big? I tried to set as first stmt, but its not using rbs_big segment, its using some other rollback segment. Is that good idea to make all my rollback segs maxextents unlimited to avoid maxextents reached error?? I have lot of rbs space nearly 10Gb. I saw one time, one of my rbs segment extented 2gb and failed transaction with maxextents reached with 5m initial and next, minextents 20 and optimal 100M. Any help will be appreciated Thanks venkat. _ Do you Yahoo!? SBC http://pa.yahoo.com/*http://rd.yahoo.com/evt=1207/*http://promo.yahoo.com/s bc/ Yahoo! DSL - Now only $29.95 per month! This e-mail message (including any attachment) is intended only for the personal use of the recipient(s) named above. This message is confidential and may be legally privileged. If you are not an intended recipient, you may not review, copy or distribute this message. If you have received this communication in error, please notify us immediately by e-mail and delete the original message. Any views or opinions expressed in this message are those of the author only. Furthermore, this message (including any attachment) does not create any legally binding rights or obligations whatsoever, which may only be created by the exchange of hard copy documents signed by a duly authorised representative of Hutchison 3G UK Limited. -- Mladen Gogala Oracle DBA -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Mladen Gogala INET: [EMAIL PROTECTED] Fat City Network Services-- 858-538-5051 http://www.fatcity.com San Diego, California-- Mailing list and web hosting services - 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).
Rollback Segs
Hi Friends, I have 150Gb database with 30 rollback segs with optimal settings!! for normal operations no problems!! But we are doing massive updates for some ofbig tables!! So we are using vb programs and connecting to the database thru odbc dsn. My first question is how to set transaction use rollback segment rbs_big? I tried to set as first stmt, but its not using rbs_big segment, its using some other rollback segment. Is that good idea to make all my rollback segs maxextents unlimited to avoid maxextents reached error?? I have lot of rbs space nearly 10Gb. I saw one time, one of my rbs segment extented 2gb and failed transaction with maxextents reached with 5m initial and next, minextents 20 and optimal 100M. Any help will be appreciated Thanks venkat. Do you Yahoo!? SBC Yahoo! DSL - Now only $29.95 per month!
RE: Rollback Segs
Ave ! Is there any reason not to keep maxextents always unlimited :) Extentsize should be reasonable of course. Br. Jorma -Original Message-From: ext venkat Rama [mailto:[EMAIL PROTECTED]Sent: 16 July, 2003 07:34To: Multiple recipients of list ORACLE-LSubject: Rollback Segs Hi Friends, I have 150Gb database with 30 rollback segs with optimal settings!! for normal operations no problems!! But we are doing massive updates for some ofbig tables!! So we are using vb programs and connecting to the database thru odbc dsn. My first question is how to set transaction use rollback segment rbs_big? I tried to set as first stmt, but its not using rbs_big segment, its using some other rollback segment. Is that good idea to make all my rollback segs maxextents unlimited to avoid maxextents reached error?? I have lot of rbs space nearly 10Gb. I saw one time, one of my rbs segment extented 2gb and failed transaction with maxextents reached with 5m initial and next, minextents 20 and optimal 100M. Any help will be appreciated Thanks venkat. Do you Yahoo!?SBC Yahoo! DSL - Now only $29.95 per month!
Re: why shrink rollback segs?
If rb's are small, then there is a good chance that just when they are about to aged out of the buffer cache, hey presto! another session needs them again - so you end up with a nice scenario where they spend their life in the cache and cause virtually no IO. As they get larger and larger, the time-before-reuse time gets longer and longer - which will mean more and more IO. Its the same for having lots of extents - many moons ago this used to be due to txns needing their own extents. Oracle lifted this restriction somewhere in v7, but it still makes sense to have 20 or so extents, because then when a rollback segment increases in size, it does it in nice 5% increments - keeping the probability of it all fitting in the cache high. hth connor --- Doug C [EMAIL PROTECTED] wrote: OK.. this may be a little naive..and maybe I'm just jogging my own memory, but here it goes... There are a couple schools of thought on rollback segments as near as I can figure. Some like to set optimal, and some don't. The one's that don't like to shrink them at night or once daily or some other variation.. Question: Why bother? If they get big and you have the room, so what? They won't have to extend tomorrow, no? If you're concerned about space, why not set a good maxextents or a limit on the filesize.. What's the problem with them getting large? Thanks, Doug -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Doug C 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). = Connor McDonald http://www.oracledba.co.uk (mirrored at http://www.oradba.freeserve.co.uk) Some days you're the pigeon, some days you're the statue __ Do You Yahoo!? Everything you'll ever need on one web page from News and Sport to Email and Music Charts http://uk.my.yahoo.com -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: =?iso-8859-1?q?Connor=20McDonald?= 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).
Re: why shrink rollback segs?
Generally I try monitor v$filestat to see what proportion of IO is due to rollback...The ideal is of course nil, but to do so pretty much means giving everyone a couple of dozen 1555's every day :-) So you end up with the balancing act of trying to make them as small as possible without introducing 1555's hth connor --- Doug C [EMAIL PROTECTED] wrote: Thanks.. makes sense... Can I use x$bh or something to determine whether it's nicely squeezed into the buffer at some point in time? On Mon, 12 Nov 2001 02:00:21 -0800, you wrote: If rb's are small, then there is a good chance that just when they are about to aged out of the buffer cache, hey presto! another session needs them again - so you end up with a nice scenario where they spend their life in the cache and cause virtually no IO. As they get larger and larger, the time-before-reuse time gets longer and longer - which will mean more and more IO. Its the same for having lots of extents - many moons ago this used to be due to txns needing their own extents. Oracle lifted this restriction somewhere in v7, but it still makes sense to have 20 or so extents, because then when a rollback segment increases in size, it does it in nice 5% increments - keeping the probability of it all fitting in the cache high. hth connor --- Doug C [EMAIL PROTECTED] wrote: OK.. this may be a little naive..and maybe I'm just jogging my own memory, but here it goes... There are a couple schools of thought on rollback segments as near as I can figure. Some like to set optimal, and some don't. The one's that don't like to shrink them at night or once daily or some other variation.. Question: Why bother? If they get big and you have the room, so what? They won't have to extend tomorrow, no? If you're concerned about space, why not set a good maxextents or a limit on the filesize.. What's the problem with them getting large? Thanks, Doug -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Doug C 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). = Connor McDonald http://www.oracledba.co.uk (mirrored at http://www.oradba.freeserve.co.uk) Some days you're the pigeon, some days you're the statue __ Do You Yahoo!? Everything you'll ever need on one web page from News and Sport to Email and Music Charts http://uk.my.yahoo.com -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Doug C 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). = Connor McDonald http://www.oracledba.co.uk (mirrored at http://www.oradba.freeserve.co.uk) Some days you're the pigeon, some days you're the statue __ Do You Yahoo!? Everything you'll ever need on one web page from News and Sport to Email and Music Charts http://uk.my.yahoo.com -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: =?iso-8859-1?q?Connor=20McDonald?= 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).
Re: why shrink rollback segs?
Thanks... good info... On Mon, 12 Nov 2001 06:45:21 -0800, you wrote: Generally I try monitor v$filestat to see what proportion of IO is due to rollback...The ideal is of course nil, but to do so pretty much means giving everyone a couple of dozen 1555's every day :-) So you end up with the balancing act of trying to make them as small as possible without introducing 1555's hth connor --- Doug C [EMAIL PROTECTED] wrote: Thanks.. makes sense... Can I use x$bh or something to determine whether it's nicely squeezed into the buffer at some point in time? On Mon, 12 Nov 2001 02:00:21 -0800, you wrote: If rb's are small, then there is a good chance that just when they are about to aged out of the buffer cache, hey presto! another session needs them again - so you end up with a nice scenario where they spend their life in the cache and cause virtually no IO. As they get larger and larger, the time-before-reuse time gets longer and longer - which will mean more and more IO. Its the same for having lots of extents - many moons ago this used to be due to txns needing their own extents. Oracle lifted this restriction somewhere in v7, but it still makes sense to have 20 or so extents, because then when a rollback segment increases in size, it does it in nice 5% increments - keeping the probability of it all fitting in the cache high. hth connor --- Doug C [EMAIL PROTECTED] wrote: OK.. this may be a little naive..and maybe I'm just jogging my own memory, but here it goes... There are a couple schools of thought on rollback segments as near as I can figure. Some like to set optimal, and some don't. The one's that don't like to shrink them at night or once daily or some other variation.. Question: Why bother? If they get big and you have the room, so what? They won't have to extend tomorrow, no? If you're concerned about space, why not set a good maxextents or a limit on the filesize.. What's the problem with them getting large? Thanks, Doug -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Doug C 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). = Connor McDonald http://www.oracledba.co.uk (mirrored at http://www.oradba.freeserve.co.uk) Some days you're the pigeon, some days you're the statue __ Do You Yahoo!? Everything you'll ever need on one web page from News and Sport to Email and Music Charts http://uk.my.yahoo.com -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Doug C 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). = Connor McDonald http://www.oracledba.co.uk (mirrored at http://www.oradba.freeserve.co.uk) Some days you're the pigeon, some days you're the statue __ Do You Yahoo!? Everything you'll ever need on one web page from News and Sport to Email and Music Charts http://uk.my.yahoo.com -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Doug C 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).
Redo for Rollback segs
When we enter data or delete date(modifying data blocks) , that will generate some redo. and my doubt is: when we delete some data in the database, that will further insert information into Rollback segment transaction tables (means furtherly it is modifying some block of oracle). Will this generate Redo? prasad __ Do You Yahoo!? Make international calls for as low as $.04/minute with Yahoo! Messenger http://phonecard.yahoo.com/ -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: prasad maganti 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).
RE: Redo for Rollback segs
Yes, __ALL__ changes to any of the database blocks are recorded in the Redo. Regards, - Kirti Deshpande Verizon Information Services http://www.superpages.com -Original Message- From: prasad maganti [SMTP:[EMAIL PROTECTED]] Sent: Friday, July 27, 2001 10:22 AM To: Multiple recipients of list ORACLE-L Subject: Redo for Rollback segs When we enter data or delete date(modifying data blocks) , that will generate some redo. and my doubt is: when we delete some data in the database, that will further insert information into Rollback segment transaction tables (means furtherly it is modifying some block of oracle). Will this generate Redo? prasad __ Do You Yahoo!? Make international calls for as low as $.04/minute with Yahoo! Messenger http://phonecard.yahoo.com/ -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: prasad maganti 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: Deshpande, Kirti 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).
RE: Redo for Rollback segs
to expand on this: changes to the rollback segments will generate entries in the redo logs. They ARE database blocks. In fact, rolling back something will generate change vectors as well. Rachel From: Deshpande, Kirti [EMAIL PROTECTED] Reply-To: [EMAIL PROTECTED] To: Multiple recipients of list ORACLE-L [EMAIL PROTECTED] Subject: RE: Redo for Rollback segs Date: Fri, 27 Jul 2001 07:36:50 -0800 Yes, __ALL__ changes to any of the database blocks are recorded in the Redo. Regards, - Kirti Deshpande Verizon Information Services http://www.superpages.com -Original Message- From: prasad maganti [SMTP:[EMAIL PROTECTED]] Sent: Friday, July 27, 2001 10:22 AM To: Multiple recipients of list ORACLE-L Subject:Redo for Rollback segs When we enter data or delete date(modifying data blocks) , that will generate some redo. and my doubt is: when we delete some data in the database, that will further insert information into Rollback segment transaction tables (means furtherly it is modifying some block of oracle). Will this generate Redo? prasad __ Do You Yahoo!? Make international calls for as low as $.04/minute with Yahoo! Messenger http://phonecard.yahoo.com/ -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: prasad maganti 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: Deshpande, Kirti 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). _ 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: Rachel Carmichael 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).
Re: Redo for Rollback segs
Rachel Carmichael wrote: to expand on this: changes to the rollback segments will generate entries in the redo logs. They ARE database blocks. In fact, rolling back something will generate change vectors as well. Rachel kinda dumb question, do changes to rollback segmants use rollback segments? and could you get the changes to rollback segments out of the logs with logminer? OK so it's 2 kind of dumb questions, i've been quiet lately.;-) and no i'm not sure why you'd want to get the changes out, but it would be interesting if you could. -- Bill Shrek Thater Certifiable ORACLE DBA Telergy, Inc[EMAIL PROTECTED] You gotta program like you don't need the money, You gotta compile like you'll never get hurt, You gotta run like there's nobody watching, It's gotta come from the heart if you want it to work! -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Thater, William 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).
Re: Redo for Rollback segs
Yes, it will. The concepts manual is your friend. Jared prasad maganti prasadm_g@yah To: Multiple recipients of list ORACLE-L [EMAIL PROTECTED] oo.com cc: Sent by: Subject: Redo for Rollback segs [EMAIL PROTECTED] om 07/27/01 08:22 AM Please respond to ORACLE-L When we enter data or delete date(modifying data blocks) , that will generate some redo. and my doubt is: when we delete some data in the database, that will further insert information into Rollback segment transaction tables (means furtherly it is modifying some block of oracle). Will this generate Redo? prasad __ Do You Yahoo!? Make international calls for as low as $.04/minute with Yahoo! Messenger http://phonecard.yahoo.com/ -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: prasad maganti 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: 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).
Re: Redo for Rollback segs
that I know of, yes they do use rollback segments. I could be wrong as for logminer, they aren't sql statements, but change vectors. so I don't know From: Thater, William [EMAIL PROTECTED] Reply-To: [EMAIL PROTECTED] To: Multiple recipients of list ORACLE-L [EMAIL PROTECTED] Subject: Re: Redo for Rollback segs Date: Fri, 27 Jul 2001 09:51:30 -0800 Rachel Carmichael wrote: to expand on this: changes to the rollback segments will generate entries in the redo logs. They ARE database blocks. In fact, rolling back something will generate change vectors as well. Rachel kinda dumb question, do changes to rollback segmants use rollback segments? and could you get the changes to rollback segments out of the logs with logminer? OK so it's 2 kind of dumb questions, i've been quiet lately.;-) and no i'm not sure why you'd want to get the changes out, but it would be interesting if you could. -- Bill Shrek Thater Certifiable ORACLE DBA Telergy, Inc[EMAIL PROTECTED] You gotta program like you don't need the money, You gotta compile like you'll never get hurt, You gotta run like there's nobody watching, It's gotta come from the heart if you want it to work! -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Thater, William 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). _ 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: Rachel Carmichael 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).
Re: Redo for Rollback segs
It is? Ah, but will it bring me tea and toast when I am sick in bed? Rachel. it's a silly sort of day today, too many meetings with too many sales reps From: [EMAIL PROTECTED] Reply-To: [EMAIL PROTECTED] To: Multiple recipients of list ORACLE-L [EMAIL PROTECTED] Subject: Re: Redo for Rollback segs Date: Fri, 27 Jul 2001 10:57:40 -0800 Yes, it will. The concepts manual is your friend. Jared prasad maganti prasadm_g@yah To: Multiple recipients of list ORACLE-L [EMAIL PROTECTED] oo.com cc: Sent by: Subject: Redo for Rollback segs [EMAIL PROTECTED] om 07/27/01 08:22 AM Please respond to ORACLE-L When we enter data or delete date(modifying data blocks) , that will generate some redo. and my doubt is: when we delete some data in the database, that will further insert information into Rollback segment transaction tables (means furtherly it is modifying some block of oracle). Will this generate Redo? prasad __ Do You Yahoo!? Make international calls for as low as $.04/minute with Yahoo! Messenger http://phonecard.yahoo.com/ -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: prasad maganti 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: 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). _ 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: Rachel Carmichael 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).
Re: Redo for Rollback segs
On Fri, 27 Jul 2001,Rachel Carmichael scribbled on the wall in glitter crayon: -It is? Ah, but will it bring me tea and toast when I am sick in bed? no, but it will put you to sleep.;-) - -Rachel. it's a silly sort of day today, too many meetings with too many -sales reps i'm not allowed to talk to sales reps, i might find something that makes my job easier to do.;-) -- Bill Shrek Thater Certifiable ORACLE DBA Telergy, Inc.[EMAIL PROTECTED] ~~ You gotta program like you don't need the money, You gotta compile like you'll never get hurt, You gotta run like there's nobody watching, It's gotta come from the heart if you want it to work. ~~ If a program is useful, it must be changed. -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Thater, William 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).
