How to trace a user who entered/dropped a table in a shared DataBase

Hai, I have a doubt plz help me
when working in a shared DataBase environment, different users will create or drop
tables from the DataBase. Is it possible to trace who has created/altered a particular table in the DB. If yes plz tell me the procedure.
Thanks in advance.
SrihariKrishna

Maybe this link provides some help?
http://asktom.oracle.com/pls/ask/f?p=4950:8:5395923770553724381::NO::F4950_P8_DISPLAYID,F4950_P8_CRITERIA:6399608034075
C.

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Edited by: 908098 on Jan 18, 2012 4:23 AM

Or you can use this kind of audit (i had used this some time ago)
-is pretty detailed but is good for auditing purpuse.
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operation VARCHAR2(30),
os_user VARCHAR2(30),
obj_owner VARCHAR2(30),
object_name VARCHAR2(30),
object_type VARCHAR2(30),
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attempt_dt DATE,
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i      PLS_INTEGER;
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How to trace a user who entered/dropped a table in a shared DataBase

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