Oracle-L: Questions about AUDIT

From: Paul Vincent <Paul.Vincent_at_uce.ac.uk>
Date: Tue, 26 Mar 2002 23:58:20 -0800
Message-ID: <F001.004346A1.20020326235820@fatcity.com>

Other than keeping a "pencil and paper" record of currently active AUDIT statements, is this information held anywhere in ORACLE? That is, is there a table or view, or something internal, that I can query to see what types of activity are currently being audited in a database? I'm not talking here about seeing the results of the audit - I know they're recorded in the SYS.AUD$ table - but about the criteria which are currently active. This would be useful to know, so that when I've issued a series of NOAUDIT statements, I can check to see that there's nothing still being audited.

A related question - (which may sound like a classic RTFM, but I can't see this explicitly stated anywhere in the docs) - does an AUDIT statement remain active through shutdown/startup cycles, until cancelled by a NOAUDIT statement, or is it only active until the next shutdown?

And finally: at what level of audit activity does it start to make a noticeable hit on performance? Would I expect users to start noticing delays if I was simply auditing CONNECTs? What if I was auditing every INSERT at ACCESS level? Or every SELECT? I know this is a "how long's a piece of string?"-type question, but I'm just after a rough, rule-of-thumb level of knowledge here...

Oh, the platforms here are: 8.0 on Windows NT, 8.1.6 on NT and Solaris, and 8.1.7 on Solaris.

Any answers/ideas appreciated!

Paul Vincent
DBA
University of Central England
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Author: Paul Vincent
INET: Paul.Vincent_at_uce.ac.uk

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