Sliding window for historical data purge in multiple related tables

All,
It is a well known question of how to efficiently BACKUP and PURGE historical data based on a sliding window.
I have a group of tables, they all have to be backed up and purged based on a sliding time window. These tables have FKs related to each other and these FKs are not necessary the timestamp column. I am considering using partition based on the timestamp column for all these tables, so i can export those out of date partitions and then drop them. The price I have to pay by this design is that timestamp column is actually duplicated many times among parent table, child tables, grand-child tables although the value is the same, but I have to do the partition based on this column in all tables.
It's very much alike the statspack tables, one stats$snapshot and many child tables to store actual statistic data. I am just wondering how statspack.purge does this, since using DELETE statement is very inefficient and time consuming. In statspack tables, snap_time is only stored in stats$snapshot table, not everywhere in it's child table, and they are not partitioned. I guess the procedure is using DELETE statement.
Any thought on other good design options? Or how would you optimize statspack tables historical data backup and purge? Thanks!

hey oracle gurus, any thoughts?

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Edited by: [email protected] on Jul 30, 2009 9:37 PM
Edited by: [email protected] on Jul 30, 2009 10:58 PM
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File "<string>", line 31, in ?
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could u give me a solution to sort out this error ASAP.
thanks,
keshav.

This was the following code generated .
import java.lang.String
import java.lang.Runtime as Runtime
from jarray import array
import java.io.File
import os
import re
import javaos
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logfile = r"""F:\flatfile/TEST.log"""
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I'm searching a way to design some historical data.
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null

<BLOCKQUOTE>quote:<HR>Originally posted by Maciej Marczukajtis ([email protected]):
I would like to ask whether there is a possibility to store XML data using normal relational tables and CLOBs in the same time. For example I have some XML data (structured data) which I would like update very often and some which are only a kind of description. I found something about it in http://technet.oracle.com/tech/xml/infoocs/otnwp/about_oracle_xml_products.htm . But I do not know how to use Oracle8i views and some functionality of XML SQL Utility to retrieve XML data in one file.<HR></BLOCKQUOTE>
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Post Author: bradwist
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Hi Folks,
I have a group of tables having relationships among them. In order to keep the change history, we can not update the data, instead, we add new data to the table(s) and mark older data as whatever non-current status. They all have timestamps in these tables.
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Thanks a lot.

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I'm trying to construct a quote tool for my resellers and partners. My software product has a different selling price determined by the licence type, licence size and some vertical market positioning.
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Message was edited by: The_Drew

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