Oracle Database Transaction History

Posted on 2002-07-15
Last Modified: 2008-03-03
Does oracle have any built in security feature that keeps track of who added/modified/deledted from the DB and where they did it?

Question by:superdesio
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LVL 35

Accepted Solution

Mark Geerlings earned 50 total points
ID: 7155324

But, that probably isn't the answer you were hoping for.  There are ways to capture this information with an Oracle database but you need to do some work.

One option to capture part of this information is the "auditing" option that Oracle supports.  You can turn auditing on but that only captures part of what you are looking for.  That captures the username, timestamp, table name and type of transaction (insert/update/delete) but not the actual data values or number of records affected.  Auditing also captures lots of additional information that you may not be interested in, but you need to manage, since it can fill up disk in a hurry.

Another option is to write one or more triggers for each table in the database.  They can capture any data you like when a transaction occurs: username, timestamp, table name, type of transaction, "before" values, "after" values, etc. and record this in audit or log tables you set up, or in ASCII log files (if you use utl_file).

Author Comment

ID: 7155352
actully the oracale auditing sounds like what i am looking for. Do you know of a good resource I can read more information on this?  Also does it capture what record in the table was updated/modified/added?


Assisted Solution

psvel earned 50 total points
ID: 7155367
As mentioned by markgeer, Oracle's default auditing feature does not captures the data images in a table and it just logs the transaction details and operations which modifies the metadata.

If you need to audit the data values in a table you need to write a trigger on each table , which can be automated . I have created audit package which contains 3 tables and set of procedures which accompolish the data auditing. If you need it let me know.
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Expert Comment

ID: 7156602
Check this out:

This is for oracle 8.1.5

You can find documentation for all versions of Oracle if you do a search on or  

This documentation is also included in the documentation that comes with your software.  


Expert Comment

ID: 7160596
logminer, are you in archive log mode?

logminer can let you peek into the arch logs as far back as you have em and you can see who did what.

8i lets you see dml
9i has included support to see ddl as well

be warned, you might be wading through a tonne of data but it's all there!
LVL 35

Expert Comment

by:Mark Geerlings
ID: 7163329
Yes, LogMiner has the DML statements that would need to be executed to repeat (and/or undo) any insert, update or delete statement.  But it is not fast or troublefree, at least in Oracle8i.

Expert Comment

ID: 9392212
No comment has been added lately, so it's time to clean up this TA.
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split between markgeer and psvel
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