Solved

Analyze Table in Oracle

Posted on 2009-04-14
6
938 Views
Last Modified: 2012-05-06
Hi,
   When i analyze the table with below command, the table is getting analyzed. I want to know the corresponding index also got analyzed or not?

 DBMS_STATS.gather_table_stats ('XXQP', 'XXQP_SAMPLE', estimate_percent => 30);

Thanks
0
Comment
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 4
  • 2
6 Comments
 
LVL 74

Expert Comment

by:sdstuber
ID: 24138206
by default NO, indexes are not gathered with table stats.

However, in 10g and above the default is configurable
you can check the default with this in 10g and above

BEGIN
    IF DBMS_STATS.to_cascade_type(DBMS_STATS.get_param('CASCADE'))
    THEN
        DBMS_OUTPUT.put_line('indexes gathered with table stats');
    ELSE
        DBMS_OUTPUT.put_line('indexes NOT gathered with table stats');
    END IF;
END;
0
 
LVL 74

Expert Comment

by:sdstuber
ID: 24138224
In 8i and 9i the default is always FALSE for "cascade"
0
 

Author Comment

by:Suriyaraj_Sudalaiappan
ID: 24138875
Hi,
  I have oracle 10g and i am running the your code. It is returning 'indexes NOT gathered with table stats'.
How?

Thanks
0
Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

 
LVL 74

Accepted Solution

by:
sdstuber earned 125 total points
ID: 24138909
"How?"  what are you asking?


The output means your default has not been modified.
So indexes are not gathered when you gather table stats unless you override that default.

set cascade  TRUE if you want to gather indexes when you gather tables

DBMS_STATS.gather_table_stats ('XXQP', 'XXQP_SAMPLE', estimate_percent => 30, cascade=>TRUE);

0
 

Author Closing Comment

by:Suriyaraj_Sudalaiappan
ID: 31569865
GOOD ONE
0
 
LVL 74

Expert Comment

by:sdstuber
ID: 24146860
glad I could help
0

Featured Post

Announcing the Most Valuable Experts of 2016

MVEs are more concerned with the satisfaction of those they help than with the considerable points they can earn. They are the types of people you feel privileged to call colleagues. Join us in honoring this amazing group of Experts.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

How to Create User-Defined Aggregates in Oracle Before we begin creating these things, what are user-defined aggregates?  They are a feature introduced in Oracle 9i that allows a developer to create his or her own functions like "SUM", "AVG", and…
From implementing a password expiration date, to datatype conversions and file export options, these are some useful settings I've found in Jasper Server.
This video explains at a high level about the four available data types in Oracle and how dates can be manipulated by the user to get data into and out of the database.
This video shows how to Export data from an Oracle database using the Datapump Export Utility.  The corresponding Datapump Import utility is also discussed and demonstrated.

738 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question