How i get old history of record

Question

hi master
sir
My need is how I get the record insert, change, delete date and data
Such as I insert record
Acid date amount
1012 01-12-2006 45824
user change this record after week but not change the date change only acid and amount
Acid date amount
2312 01-12-2006 428276
how I get information when user change and what old data
2.
which record user delete and when he delete my management need full history of data activities
please give me idea how I get old history
thank’s
aamir

Answer 1

Yes. Oracle does keep track of records but in a different way. It saves the redo information in redo logs so that it can recover the database in case of crash.
It also keeps undo information in separate tablespace in case you rollback your transaction.
But... this is not what I would call maintaining history.
Moving ahead, these redo logs are archived to another location if you have archiving enabled.
You can use log miner to mine through these archived logs but I doubt if any human would have patience to go through all those archive logs that are generated frequently, just to track the updates/deletes done.
For me, adding a trigger is much simpler.