How to Create Event polling table

hi,
1)How to Create Event polling table
2) wahts RPD stands for.
3) when we are prefer Dynamic variables.
thanks.
raj

1) http://obiee101.blogspot.com/2008/07/obiee-managing-cache-emptyingpurging.html
2) Repository Project Design ?
- More than likely the extension RPD was not used by anything else when Siebel Analytics first started using it, no doubt the 'RP' is repository, so use 'Definition' or 'Design' as you like. Im pretty sure there is nothing in the documentation but i've not checked, maybe you could check and let us know?
3) Dynamic variables would be something like 'CURRENT_MONTH' where the same query does not need to fire per user (ie SESSION variable) but needs to be periodically refreshed. Another use of you dynamic variable might be 'LAST_ETL_DATE' or somethng similar which might implement with your event polling table. By including the Variable within a Business Model, all cache for the Business Model is purged whenever the Variable's value changes.

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hi all,
i am facing problem with event polling tables
i will tell you the steps which i have followed for event polling tables
1.i have created a table in back end for event polling table
2.i have created ODBC connection to import the tables
3. i have imported the tables along with event polling table
4. i made the table as event polling table using utilities
5.and then i ran the report in presentation catalog and i checked out the cache entries in Administration tool(in cache)
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but cache purging is not happening ,
any other steps that i have to follow ,or did i do any mistake while implementing event polling table
please can any tell me how to make use of event polling table, i have followed following link
http://gerardnico.com/wiki/dat/obiee/event_table_
Thanks

Hi,
The steps are correct frm the link i have given,is the table name correctly specified i mean is it matching with the physical layer table.
Test it for 1 table and check out by running the request containing that table and then insert 1 row manually to purge the activity or not by going to and verify that the cache entry is deleted and that you can find the below trace in the NQQuery.log file.
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hope you follow etiquitte.
By,
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PFB the create statement we used.
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Hi Raj,
What you said is correct , Event Polling is one of the method to improve the performance in obiee.
http://gerardnico.com/wiki/dat/obiee/event_table
Oracle BI Server event polling table (event table) is a way to notify the Oracle BI Server that one or more physical tables have been updated and then that the query cache entries are stale. Each row that is added to an event table describes a single update event, such as an update occurring to a Product table. The Oracle BI Server cache system reads rows from, or polls, the event table, extracts the physical table information from the rows, and purges stale cache entries that reference those physical tables.
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