Best way to generate report on huge data table

Hi,
I am using Oracle11g.
I want to generate reports on transaction tables containing huge amount of data, on which very frequently DMLs are performing in real time.
i want to keep my report/result in RESULT_CACHE for 15 mins. active. whenever any insert/update runs on main tables the RESULT_CACHE is getting invalidated
my question is can i control/stop RESULT_CACHE relies on(table_name) invalidating, as Oracle11g invalidating RESULT_CACHE automatically.
my requirement is to not hit the main table again&again.
pls help..
Thanks in advance.
Vinod

910575 wrote:
Hi,
I am using Oracle11g.
I want to generate reports on transaction tables containing huge amount of data, on which very frequently DMLs are performing in real time.
i want to keep my report/result in RESULT_CACHE for 15 mins. active. whenever any insert/update runs on main tables the RESULT_CACHE is getting invalidated
my question is can i control/stop RESULT_CACHE relies on(table_name) invalidating, as Oracle11g invalidating RESULT_CACHE automatically.
my requirement is to not hit the main table again&again.
pls help..
It sounds as if you're trying to avoid contention on a very busy large table while users are experimenting with relatively small fractions of the total data set. The type of thing you're doing is probably about the best approach - though it sounds as if you are not using global temporary tables which could save you a bit of time and contention when refreshing each private data set.
Ideally, though, you probably want a front end tool that does client-side caching - i.e. pulls the data into the front-end tool and lets the user rearrange it cosmetically there until the user explicitly requests a new trip to the database. I think Oracle Discoverer has (had) some capability in this area. What's the scale of the work the users are doing - can you give us a few scenarios about how much raw data they will extract and what they want to do with it before they refresh it ?
Regards
Jonathan Lewis
http://jonathanlewis.wordpress.com
Author: <b><em>Oracle Core</em></b>
P.S. Oracle does have client-side caching technology - but your ability to use it is dependent on the tools you use. You might want to go over to one of the developer or BI forums to see what they say about this problem; they may give you a different perspective on it.
Edited by: Jonathan Lewis on Jan 31, 2012 6:55 PM

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