RE: DB Parameters
You may also want to check for any triggers tied to these tables as well... Rich -Original Message- Walid Alkaakati Sent: Friday, October 10, 2003 9:45 AM To: Multiple recipients of list ORACLE-L HI , I have noticed that both deleting and inserting is too slow (about five hours to insert 4 rows ), this may be because i have more than 40 INDEX ON THIS TWO tables,I will try to disable them before i run my insert statement . Thanks, ++ This message and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this message in error please delete it and any files transmitted with it, after notifying [EMAIL PROTECTED] Any opinions expressed in this message may be those of the author and not necessarily those of the Company. The Company accepts no responsibility for the accuracy or completeness of any information contained herein. This message is not intended to create legal relations between the Company and the recipient. Recipients should please note that messages sent via the internet may be intercepted and that caution should therefore be exercised before despatching to the Company any confidential or sensitive information. ++ -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Walid Alkaakati 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: Rich Gesler 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: DB Parameters
I stand corrected: tracing probably won't work because the cr and cu values would wrap. Just kidding. :) BEFORE YOU TRY disabling indexes (or anything else for that matter), I strongly advise you to trace the program so you can see where it spends its time. Even if you have guessed the solution correctly, tracing will provide the enormous value of allowing you to quantify exactly how much ground you will have gained. Then there's always the chance that you haven't guessed the solution correctly, in which case you'll need the trace data to help you divine the actual right solution. Cary Millsap Hotsos Enterprises, Ltd. http://www.hotsos.com Upcoming events: - Performance Diagnosis 101: 10/28 Phoenix, 11/19 Sydney - SQL Optimization 101: 12/8-12 Dallas - Hotsos Symposium 2004: March 7-10 Dallas - Visit www.hotsos.com for schedule details... -Original Message- Walid Alkaakati Sent: Friday, October 10, 2003 8:45 AM To: Multiple recipients of list ORACLE-L HI , I have noticed that both deleting and inserting is too slow (about five hours to insert 4 rows ), this may be because i have more than 40 INDEX ON THIS TWO tables,I will try to disable them before i run my insert statement . Thanks, ++ This message and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this message in error please delete it and any files transmitted with it, after notifying [EMAIL PROTECTED] Any opinions expressed in this message may be those of the author and not necessarily those of the Company. The Company accepts no responsibility for the accuracy or completeness of any information contained herein. This message is not intended to create legal relations between the Company and the recipient. Recipients should please note that messages sent via the internet may be intercepted and that caution should therefore be exercised before despatching to the Company any confidential or sensitive information. ++ -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Walid Alkaakati 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: Cary Millsap 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: DB Parameters
use bind variable -Original Message- Sent: 09 October 2003 16:29 To: Multiple recipients of list ORACLE-L Hi List , Can you help me please , What are the database parameters that i have to increase or modify in order to increase the speed of my ddl statments ,i have a statment that delete a table with 4 record but it takes about nine hours to accomplish !!! Is their any parameters on the server that i have to check ??,Increase rollback segment is not helpfull at all . Iam runningoracle 9.2.0.1.0 production . Thanks for your help. Bye. ++ This message and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this message in error please delete it and any files transmitted with it, after notifying [EMAIL PROTECTED] Any opinions expressed in this message may be those of the author and not necessarily those of the Company. The Company accepts no responsibility for the accuracy or completeness of any information contained herein. This message is not intended to create legal relations between the Company and the recipient. Recipients should please note that messages sent via the internet may be intercepted and that caution should therefore be exercised before despatching to the Company any confidential or sensitive information. ++ -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Walid Alkaakati 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: Sinardy Xing 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: DB Parameters
Hi, What is volume of ur table, and 4 records that u want to delete is what % of total records. One thing that u can try is introduce index hint in delete statement. The optimal solution can be find out only if know exact statement and volume of tables and indexes. Also can u check the size of tablespace used by this table? And calculate the total size this table should use with current volume of records. Cheers, Manoj Kumar Jha A transcendentalist engaged in auspicious activities does not meet with destruction either in this world or in the spiritual world; one who does good, is never overcome by evil. Walid Alkaakati [EMAIL PROTECTED]To: Multiple recipients of list ORACLE-L [EMAIL PROTECTED] abeit.com cc: Sent by: Subject: DB Parameters [EMAIL PROTECTED] 10/09/03 01:59 PM Please respond to ORACLE-L Hi List , Can you help me please , What are the database parameters that i have to increase or modify in order to increase the speed of my ddl statments ,i have a statment that delete a table with 4 record but it takes about nine hours to accomplish !!! Is their any parameters on the server that i have to check ??,Increase rollback segment is not helpfull at all . Iam runningoracle 9.2.0.1.0 production . Thanks for your help. Bye. ++ This message and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this message in error please delete it and any files transmitted with it, after notifying [EMAIL PROTECTED] Any opinions expressed in this message may be those of the author and not necessarily those of the Company. The Company accepts no responsibility for the accuracy or completeness of any information contained herein. This message is not intended to create legal relations between the Company and the recipient. Recipients should please note that messages sent via the internet may be intercepted and that caution should therefore be exercised before despatching to the Company any confidential or sensitive information. ++ -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Walid Alkaakati 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). DISCLAIMER: The information contained in this message is intended only and solely for the addressed individual or entity indicated in this message and for the exclusive use of the said addressed individual or entity indicated in this message (or responsible for delivery of the message to such person) and may contain legally privileged and confidential information belonging to Tata Consultancy Services. It must not be printed, read, copied, disclosed, forwarded,
Re Db Parameters
Hi Can You please give an example on using bund varables .. THANKS
RE: DB Parameters
Walid TRUNCATE Dennis Williams DBA, 80%OCP, 100% DBA Lifetouch, Inc. [EMAIL PROTECTED] -Original Message- Sent: Thursday, October 09, 2003 3:29 AM To: Multiple recipients of list ORACLE-L Hi List , Can you help me please , What are the database parameters that i have to increase or modify in order to increase the speed of my ddl statments ,i have a statment that delete a table with 4 record but it takes about nine hours to accomplish !!! Is their any parameters on the server that i have to check ??,Increase rollback segment is not helpfull at all . Iam runningoracle 9.2.0.1.0 production . Thanks for your help. Bye. ++ This message and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this message in error please delete it and any files transmitted with it, after notifying [EMAIL PROTECTED] Any opinions expressed in this message may be those of the author and not necessarily those of the Company. The Company accepts no responsibility for the accuracy or completeness of any information contained herein. This message is not intended to create legal relations between the Company and the recipient. Recipients should please note that messages sent via the internet may be intercepted and that caution should therefore be exercised before despatching to the Company any confidential or sensitive information. ++ -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Walid Alkaakati 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: DENNIS WILLIAMS 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: DB Parameters
Lee? -Original Message- Walid Alkaakati Sent: Thursday, October 09, 2003 4:29 AM To: Multiple recipients of list ORACLE-L Hi List , Can you help me please , What are the database parameters that i have to increase or modify in order to increase the speed of my ddl statments ,i have a statment that delete a table with 4 record but it takes about nine hours to accomplish !!! Is their any parameters on the server that i have to check ??,Increase rollback segment is not helpfull at all . Iam runningoracle 9.2.0.1.0 production . Thanks for your help. Bye. ++ This message and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this message in error please delete it and any files transmitted with it, after notifying [EMAIL PROTECTED] Any opinions expressed in this message may be those of the author and not necessarily those of the Company. The Company accepts no responsibility for the accuracy or completeness of any information contained herein. This message is not intended to create legal relations between the Company and the recipient. Recipients should please note that messages sent via the internet may be intercepted and that caution should therefore be exercised before despatching to the Company any confidential or sensitive information. ++ -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Walid Alkaakati 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: Henry Poras 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: DB Parameters
No -Original Message- Sent: 09 October 2003 14:15 To: Multiple recipients of list ORACLE-L Lee? -Original Message- Walid Alkaakati Sent: Thursday, October 09, 2003 4:29 AM To: Multiple recipients of list ORACLE-L Hi List , Can you help me please , What are the database parameters that i have to increase or modify in order to increase the speed of my ddl statments ,i have a statment that delete a table with 4 record but it takes about nine hours to accomplish !!! Is their any parameters on the server that i have to check ??,Increase rollback segment is not helpfull at all . Iam runningoracle 9.2.0.1.0 production . Thanks for your help. Bye. ++ This message and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this message in error please delete it and any files transmitted with it, after notifying [EMAIL PROTECTED] Any opinions expressed in this message may be those of the author and not necessarily those of the Company. The Company accepts no responsibility for the accuracy or completeness of any information contained herein. This message is not intended to create legal relations between the Company and the recipient. Recipients should please note that messages sent via the internet may be intercepted and that caution should therefore be exercised before despatching to the Company any confidential or sensitive information. ++ -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Walid Alkaakati 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: Henry Poras 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). ** The information contained in this communication is confidential, is intended only for the use of the recipient named above, and may be legally privileged. If the reader of this message is not the intended recipient, you are hereby notified that any dissemination, distribution, or copying of this communication is strictly prohibited. If you have received this communication in error, please re-send this communication to the sender and delete the original message or any copy of it from your computer system. Thank You. -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Robertson Lee - lerobe 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: DB Parameters
You can try with the _db_perf_silver_bullet=42, which is the straightforward approach, or you can be a backward hick like me and trace your session with 10046, see what events are you waiting for and adjust your application, OS and instance parameters to really solve the problem. On Thu, 2003-10-09 at 04:29, Walid Alkaakati wrote: Hi List , Can you help me please , What are the database parameters that i have to increase or modify in order to increase the speed of my ddl statments ,i have a statment that delete a table with 4 record but it takes about nine hours to accomplish !!! Is their any parameters on the server that i have to check ??,Increase rollback segment is not helpfull at all . Iam runningoracle 9.2.0.1.0 production . Thanks for your help. Bye. ++ This message and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this message in error please delete it and any files transmitted with it, after notifying [EMAIL PROTECTED] Any opinions expressed in this message may be those of the author and not necessarily those of the Company. The Company accepts no responsibility for the accuracy or completeness of any information contained herein. This message is not intended to create legal relations between the Company and the recipient. Recipients should please note that messages sent via the internet may be intercepted and that caution should therefore be exercised before despatching to the Company any confidential or sensitive information. ++ -- 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: DB Parameters
I was tempted to point to the /*+ _try_harder */ hint (revealed by Jonathan Lewis at this year's IOUG), but that won't be available until Oracle 10. Until then we have to use the old methods of identifying where the time is spent and figure out what can be done to eliminate as much of it as possible. I have seen deletes take a long time if the table was heavily indexed. Removing the indexes before the delete and rebuilding afterwards was the solution there. At 02:29 AM 10/9/2003, you wrote: Hi List , Can you help me please , What are the database parameters that i have to increase or modify in order to increase the speed of my ddl statments ,i have a statment that delete a table with 4 record but it takes about nine hours to accomplish !!! Is their any parameters on the server that i have to check ??,Increase rollback segment is not helpfull at all . Iam runningoracle 9.2.0.1.0 production . Wolfgang Breitling Oracle7, 8, 8i, 9i OCP DBA Centrex Consulting Corporation http://www.centrexcc.com -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Wolfgang Breitling 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: DB Parameters
Walid, It's unlikely that a database parameter will provide the solution to your problem. Trace the DELETE if you can (DBMS_SUPPORT.START_TRACE_IN_SESSION), to see what's taking so long. Odds are that your DELETE is poorly optimized SQL that's simply doing more work than it needs to be doing. BUT FIND OUT BEFORE YOU ASSUME THAT'S WHAT IT IS. If you find that your DELETE is consuming massive amounts of CPU service or OS read time, then take the query part of your DELETE out of your DELETE statement, and work with it until you get a decent execution plan. For example, if your statement were: DELETE FROM table WHERE predicate-list ...then focus on optimizing the query SELECT rowid FROM table WHERE predicate-list At this point, it's a standard SQL optimization exercise. The tools at your disposal include, but are not restricted to: - Can you use TRUNCATE to produce a functionally correct end-state? - Are the statistics on your table reasonable? - Does your SQL use all the join conditions that are necessary to allow the Oracle Query Optimizer to do its job of finding the best plan? - Does your table have all the check constraints on it that the Oracle Query Optimizer needs to do its job of finding the best plan? - Do the indexes exist that the Oracle Query Optimizer needs to do its job of finding the best plan? - Can you eliminate unnecessary indexes without harming other SQL statements? - And so on... As a last resort, you might consider using hints upon the SQL to coax the optimizer into using the plan you want, but I would advise doing this only in unusual circumstances. If all your other work is done properly, then I would submit that it's usually a good idea to eliminate hints from your SQL. Cary Millsap Hotsos Enterprises, Ltd. http://www.hotsos.com Upcoming events: - Performance Diagnosis 101: 10/28 Phoenix, 11/19 Sydney - SQL Optimization 101: 12/8-12 Dallas - Hotsos Symposium 2004: 3/7-10 Dallas - Visit www.hotsos.com for schedule details... -Original Message- Walid Alkaakati Sent: Thursday, October 09, 2003 3:29 AM To: Multiple recipients of list ORACLE-L Hi List , Can you help me please , What are the database parameters that i have to increase or modify in order to increase the speed of my ddl statments ,i have a statment that delete a table with 4 record but it takes about nine hours to accomplish !!! Is their any parameters on the server that i have to check ??,Increase rollback segment is not helpfull at all . Iam runningoracle 9.2.0.1.0 production . Thanks for your help. Bye. ++ This message and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this message in error please delete it and any files transmitted with it, after notifying [EMAIL PROTECTED] Any opinions expressed in this message may be those of the author and not necessarily those of the Company. The Company accepts no responsibility for the accuracy or completeness of any information contained herein. This message is not intended to create legal relations between the Company and the recipient. Recipients should please note that messages sent via the internet may be intercepted and that caution should therefore be exercised before despatching to the Company any confidential or sensitive information. ++ -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Walid Alkaakati 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: Cary Millsap 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: DB Parameters
Does the table you are deleting has any child table(s)? If yes, then are the foreign keys in the child table(s) indexed? Guang -Original Message- Wolfgang Breitling Sent: Thursday, October 09, 2003 11:34 AM To: Multiple recipients of list ORACLE-L I was tempted to point to the /*+ _try_harder */ hint (revealed by Jonathan Lewis at this year's IOUG), but that won't be available until Oracle 10. Until then we have to use the old methods of identifying where the time is spent and figure out what can be done to eliminate as much of it as possible. I have seen deletes take a long time if the table was heavily indexed. Removing the indexes before the delete and rebuilding afterwards was the solution there. At 02:29 AM 10/9/2003, you wrote: Hi List , Can you help me please , What are the database parameters that i have to increase or modify in order to increase the speed of my ddl statments ,i have a statment that delete a table with 4 record but it takes about nine hours to accomplish !!! Is their any parameters on the server that i have to check ??,Increase rollback segment is not helpfull at all . Iam runningoracle 9.2.0.1.0 production . Wolfgang Breitling Oracle7, 8, 8i, 9i OCP DBA Centrex Consulting Corporation http://www.centrexcc.com -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Wolfgang Breitling 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: Guang Mei 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).
