Table monitoring causes SMON to populate DBA_TAB_MODIFICATIONS every 15 minutes in 9 8i it's every 3 hours. You get information on inserts,updates,deletes,truncates OR in 9 EXECUTE DBMS_STATS.FLUSH_DATABASE_MONITORING_INFO; like POP1 07-AUG-2004 02:32:45 OWNER TABLE_NAME INSERTS UPDATES DELETES TRU TIME -------- ----------------------------- --------- ------------ --------- --- -------------------- XXXUSER ACXSTATS 22,325 0 0 NO 06-AUG-2004 20:03:44 XXXUSER ADDRESS 86,152 11,699 280 NO 07-AUG-2004 02:32:45 XXXUSER APPOINTMENT 5,254 475 0 NO 07-AUG-2004 01:58:03 or SELECT 'TABLES THAT HAVE DELETES > 1000:' FROM DUAL; Or Just for Truncates 1 SELECT TABLE_OWNER 2 ,TABLE_NAME 3 ,INSERTS 4 ,UPDATES 5 ,DELETES 6 ,TRUNCATED 7 ,TO_CHAR(TIMESTAMP,'DD-MON-YYYY HH24:MI:SS') TIME 8 FROM DBA_TAB_MODIFICATIONS 9 WHERE TRUNCATED = 'YES' 10 --AND TABLE_OWNER LIKE UPPER('%&Schema_owner') Larry -----Original Message----- From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx]On Behalf Of Justin Cave Sent: Friday, August 06, 2004 9:22 PM To: oracle-l@xxxxxxxxxxxxx Subject: RE: db file scattered read I believe that MONITORING instructs Oracle to keep a rough count of the number of rows in a table that have changed since the last time statistics were gathered, so that when you gather statistics next, if you specify GATHER STALE, Oracle will know which tables it actually needs to gather statistics on. I don't believe that MONITORING instructs Oracle to update the statistics automatically. Justin Cave Distributed Database Consulting, Inc. http://www.ddbcinc.com/askDDBC -----Original Message----- From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Mladen Gogala Sent: Friday, August 06, 2004 8:01 PM To: oracle-l@xxxxxxxxxxxxx Subject: Re: db file scattered read On 08/06/2004 08:19:49 PM, Lyndon Tiu wrote: > > I have to analyze manually all the time? In 9i you sen set table to "MONITORING", and Oracle will collect statistics automatically. In 9i you can set dynamic sampling to 4 and Oracle will collect statistics during parse. -- Mladen Gogala Oracle DBA ---------------------------------------------------------------- Please see the official ORACLE-L FAQ: http://www.orafaq.com ---------------------------------------------------------------- To unsubscribe send email to: oracle-l-request@xxxxxxxxxxxxx put 'unsubscribe' in the subject line. -- Archives are at //www.freelists.org/archives/oracle-l/ FAQ is at //www.freelists.org/help/fom-serve/cache/1.html ----------------------------------------------------------------- ---------------------------------------------------------------- Please see the official ORACLE-L FAQ: http://www.orafaq.com ---------------------------------------------------------------- To unsubscribe send email to: oracle-l-request@xxxxxxxxxxxxx put 'unsubscribe' in the subject line. -- Archives are at //www.freelists.org/archives/oracle-l/ FAQ is at //www.freelists.org/help/fom-serve/cache/1.html ----------------------------------------------------------------- ********************************************************************** 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.com ---------------------------------------------------------------- To unsubscribe send email to: oracle-l-request@xxxxxxxxxxxxx put 'unsubscribe' in the subject line. -- Archives are at //www.freelists.org/archives/oracle-l/ FAQ is at //www.freelists.org/help/fom-serve/cache/1.html -----------------------------------------------------------------