oracle11g - Selective data archival and purging in Oracle 11g -

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in application, use oracle 11g. have tables holding large amount of financial information grows on daily basis. our data categorized monthly data (basically monthly summary) , daily data (basically, daily holdings). our purge requirements 'in case of daily data, given month, retain current , previous day's data , purge rest'. month end data, retain data of last & last 1 business day of month.

the challenge have tables of large size , have not been purged last couple of years due few issues. has slowed down application performance , hence want resume purge of tables. however, in few regions, archive data rather purge due legal restrictions.

i guess partitioning might not work in case our purge requirements pretty specific. our purge programs done programatically via plsql procedures. best way efficiently perform purge / archival in case? purge frequency of once week suffice.


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