How to find the last change in a oracle Table

Dear team,

Need one help. I have one oracle table where for few records we have changed a particular field recently.
The field is a boolean field and either t or f can be saved there.
Is there any way we can find what are those records.
We have last sysmodtime but that saves the time of last any type of change in the table.

Appreciate your quick response.
Who is Participating?
sdstuberConnect With a Mentor Commented:
you'll need to work with your dba to set it up and possibly retrieve old files for you.
  He/she should be able to help you out.

Here's an overview though.
if you have fine grained auditting turned on to capture that sort of activity.

or if you have triggers with your own application logging

but, if you didn't set up something to capture it,  no.

the only way to do it would be through log miner
AnandSahooAuthor Commented:
No We dont have anything setup to capture.
How can I use teh log miner ?

Please can you give some idea abt it
AnandSahooAuthor Commented:
Thank You
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