Ron,
I use:
DBMS_Utility.Analyze_Schema(Schema => 'OurSchema'
,Method => 'ESTIMATE'
,Estimate_Percent => 5
);
Using 'COMPUTE' would take forever since our largest table has 27 million
rows and many others are in the 2 to 10 million row range. Also, our DB is
very dynamic, with LOTS of inserts and updates each day, so we need to
re-analyze daily.
'COMPUTE' looks at all the rows in all the tables and all the rows in all
their indexes - that's why it takes so long. Why not try 'ESTIMATE' with 5
percent? If that's fast, up it to 10 percent, then 20...until it takes too
long for your "analyze window". BTW, you get very satisfactory statistics
with low sample percentages.
I'd still like to know how to make DBMS_Stats "do the right thing", though.
8^)
Jack
--------------------------------
Jack C. Applewhite
Database Administrator/Developer
OCP Oracle8 DBA
iNetProfit, Inc.
Austin, Texas
www.iNetProfit.com
[EMAIL PROTECTED]
(512)327-9068
-----Original Message-----
L.
Sent: Monday, July 16, 2001 6:21 PM
To: Multiple recipients of list ORACLE-L
Here is the syntax I am using:
execute dbms_utility.analyze_schema('PROD','COMPUTE');
Is there anything that might have made the analyze run so long? By the way,
we are running 7.3.4.
Ron
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