The Oracle optimizer automatic statistical work does not run after full import

Hi all

I did a full import in our QA database, import was successful, but GATHER_STATS_JOB does not work after sep 18 2010 if its activation and on demand, I question last_analyzed table to check and confirmed that he has not run after sep18, 2010.

See below for the output

OWNER JOB_NAME HIS STATE START_DATE END_DATE LAST_START_DATE NEXT_RUN_D
------------ ------------------------------ ----- --------------- ---------- ---------- ------------------- ----------
SYS TRUE REGULAR GATHER_STATS_JOB 2010-09-18 06:00:02


Collection of statistics work defined automatic optimizer Oracle

=======

SQL > select JOB_NAME, STATUS, OWNER, REQ_START_DATE,.
TO_CHAR (ACTUAL_START_DATE, ' dd-mm-yyyy HH24:MI:SS) ACTUAL_START_DATE, RUN_DURATION
of dba_scheduler_job_run_details where
job_name = order of 'GATHER_STATS_JOB' by ACTUAL_START_DATE asc; 2 3 4

OWNER JOB_NAME STATUS REQ_START_DATE ACTUAL_START_DATE
------------ ------------------------------ ------------ ------------------------------ ------------------------------
RUN_DURATION
--------------------
SYS GATHER_STATS_JOB MANAGED 16/09/2010 22:00
+ 000 00:00:22

SYS GATHER_STATS_JOB SUCCEEDED 2010-09-17 22:00:02
+ 000 00:00:18

SYS GATHER_STATS_JOB SUCCEEDED 2010-09-18 06:00:02
+ 000 00:00:26


What could be the reason for the GATHER_STATS_JOB job does not although his game to automotive

SQL > select dbms_stats.get_param ('AUTOSTATS_TARGET') of double;

DBMS_STATS. GET_PARAM ('AUTOSTATS_TARGET')
------------------------------------------------------------------------------------------------------------------------
Auto

Someone has this kind of experience, please share
Apprecitate your answers

Concerning
SRH

? So basically you're saying is if none of the tables are changed then GATHER_STATS_JOB will not work, but I see tables are updated again the task does not run. I did > dba_scheduler_jobs request and the State of employment are true and regular. Please see my previous post on the output

Am I missing something here, I get some parameters parameters

So basically you are saying is if none of the tables are changed then GATHER_STATS_JOB will not work.

GATHER_STATS_JOB will take place, and if there is no table in which there is a 10% change in the data, it will bring together statistics on this table. If no data in the table have changes less than 10 percent, it will bring together not statistics.

http://download.Oracle.com/docs/CD/B19306_01/server.102/b14211/stats.htm#i41282

I hope this helps.

-André

Tags: Database

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