Everything self tuning .... yeah it works.

I have two identical tables (with different number of rows of course) and
separately analyzed. They have identical index. When I run select on both
tables after supplying a value for the PK, the query on main table uses the
PK index and works fine. The query on second table (identical, except for
different table name), uses a concat index with 'index skip scan' instead of
pk.

I have no explanation, does anyone have any? I have the 10053 dump available
if you need it. I am trying to understand "WHY" it isn't using the pk and
resorting to skip scanning? The db is 9012.

Raj
______________________________________________________
Rajendra Jamadagni              MIS, ESPN Inc.
Rajendra dot Jamadagni at ESPN dot com
Any opinion expressed here is personal and doesn't reflect that of ESPN Inc.

QOTD: Any clod can have facts, but having an opinion is an art!


-----Original Message-----
Sent: Friday, July 12, 2002 5:43 PM
To: Multiple recipients of list ORACLE-L


I just like that 'dream' of 'no dba required'  ;) 
'cause I have heard enough presenters mention it... the new self tuning 9i,
the new 'everything dynamic' 9i and such...... 

- Kirti 
*********************************************************************This e-mail 
message is confidential, intended only for the named recipient(s) above and may 
contain information that is privileged, attorney work product or exempt from 
disclosure under applicable law. If you have received this message in error, or are 
not the named recipient(s), please immediately notify corporate MIS at (860) 766-2000 
and delete this e-mail message from your computer, Thank 
you.*********************************************************************2

Reply via email to