Turning off undo for one session
We are trying to load 23Gb's of raster images into our 9.2.0.2/Rac Database, using ESRI's SDE GIS package, and as usual there is a big rush to load the data. If we try to load 14 images at one time, we run out of undo space (datafile is currently 2 Gb). I could simply add another datafile and not worry about, but I figure that's the easy way out. I have turned logging off for the table and the tablespace, but I can't figure out how to turn the creation of undo off for a particular session, or if it is even possible. Thanks Darren -- Darren Browett P.EngThis message was transmitted Data Administrator using 100% recycled electrons Information and Communication Technology City of Coquitlam P:(604)927 - 3614 E:[EMAIL PROTECTED] --- -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Browett, Darren 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).
Re: Turning off undo for one session
Undo cannot be turned off because without commit/rollback capability, RDBMS can no longer manage resources and cannot observe ACID properties. What you can do is to load files as BFILE type, which, essentially, means that you are copying them to file system and just recording the pathname into the database. If you use DBMS_LOB.READ, then LOB blocks are protected by the transaction mechanism and there is nothing you can do. On Thu, 2003-10-09 at 12:44, Browett, Darren wrote: We are trying to load 23Gb's of raster images into our 9.2.0.2/Rac Database, using ESRI's SDE GIS package, and as usual there is a big rush to load the data. If we try to load 14 images at one time, we run out of undo space (datafile is currently 2 Gb). I could simply add another datafile and not worry about, but I figure that's the easy way out. I have turned logging off for the table and the tablespace, but I can't figure out how to turn the creation of undo off for a particular session, or if it is even possible. Thanks Darren -- Darren Browett P.Eng This message was transmitted Data Administratorusing 100% recycled electrons Information and Communication Technology City of Coquitlam P:(604)927 - 3614 E:[EMAIL PROTECTED] --- -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Mladen Gogala Oracle DBA Note: This message is for the named person's use only. It may contain confidential, proprietary or legally privileged information. No confidentiality or privilege is waived or lost by any mistransmission. If you receive this message in error, please immediately delete it and all copies of it from your system, destroy any hard copies of it and notify the sender. You must not, directly or indirectly, use, disclose, distribute, print, or copy any part of this message if you are not the intended recipient. Wang Trading LLC and any of its subsidiaries each reserve the right to monitor all e-mail communications through its networks. Any views expressed in this message are those of the individual sender, except where the message states otherwise and the sender is authorized to state them to be the views of any such entity. -- 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).
RE: Turning off undo for one session
Thanks for the response, unfortunately the application requires the data to be stored in the database, loading the files as BFILE type and then using DBMS_LOB.READ is not possible. Darren -Original Message- Sent: Thursday, October 09, 2003 10:10 AM To: Multiple recipients of list ORACLE-L Undo cannot be turned off because without commit/rollback capability, RDBMS can no longer manage resources and cannot observe ACID properties. What you can do is to load files as BFILE type, which, essentially, means that you are copying them to file system and just recording the pathname into the database. If you use DBMS_LOB.READ, then LOB blocks are protected by the transaction mechanism and there is nothing you can do. On Thu, 2003-10-09 at 12:44, Browett, Darren wrote: We are trying to load 23Gb's of raster images into our 9.2.0.2/Rac Database, using ESRI's SDE GIS package, and as usual there is a big rush to load the data. If we try to load 14 images at one time, we run out of undo space (datafile is currently 2 Gb). I could simply add another datafile and not worry about, but I figure that's the easy way out. I have turned logging off for the table and the tablespace, but I can't figure out how to turn the creation of undo off for a particular session, or if it is even possible. Thanks Darren -- Darren Browett P.Eng This message was transmitted Data Administratorusing 100% recycled electrons Information and Communication Technology City of Coquitlam P:(604)927 - 3614 E:[EMAIL PROTECTED] --- -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Mladen Gogala Oracle DBA Note: This message is for the named person's use only. It may contain confidential, proprietary or legally privileged information. No confidentiality or privilege is waived or lost by any mistransmission. If you receive this message in error, please immediately delete it and all copies of it from your system, destroy any hard copies of it and notify the sender. You must not, directly or indirectly, use, disclose, distribute, print, or copy any part of this message if you are not the intended recipient. Wang Trading LLC and any of its subsidiaries each reserve the right to monitor all e-mail communications through its networks. Any views expressed in this message are those of the individual sender, except where the message states otherwise and the sender is authorized to state them to be the views of any such entity. -- 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). -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Browett, Darren 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).
