How to find the frequently updated columns in a table

Hi ,
I need to find out all the columns of a tables which are frequently getting updated.
is there any way that I can achieve this ? I am not sure if any meta data information for DML operations exist in Oracle 9 i. Any input is welcome.
Thanks in Advance !!

Thank u , i am thinking the same, Thanks for the suggestion.
any other idea.... like is there any system table which we can query to get details about these dml operations on a table ?are there any kind of system audit tables in oracle where these get recorded ?

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How to find the frequently updated columns in a table

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