RE: SQL Tunning
- From: Raj Jamadagni <rjamya@xxxxxxxxx>
- To: oracle-l@xxxxxxxxxxxxx
- Date: Tue, 3 Aug 2004 09:29:24 -0700 (PDT)
what about
select *
from my_40_million_row_table
where last_update_date between trunc(sysdate) and
(trunc(sysdate)+(86399/86400))
/
??
Raj
> -----Original Message-----
> From: oracle-l-bounce@xxxxxxxxxxxxx
> [mailto:oracle-l-bounce@xxxxxxxxxxxxx]On Behalf Of Wes Brooks
> Sent: Monday, August 02, 2004 6:13 AM
> To: Oracle-L@xxxxxxxxxxxxx
> Subject: SQL Tunning
>
>
> Hello expert,
>
> I have a table with 40 millions records and the last update date is indexed.
> But when we use the
> following where clause, it takes forever to run the report.
>
> WHERE TRUNC(last_update_date) = TRUNC(SYSDATE - 1)
>
> How to improve the performance? Do I need to create a new index field on
> the table with TRUNC(last_update_date)?
=====
Best Regards
Raj
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