Offtopic on Solaris Auditing

From: Kamalakannan, D (CAP, GCF) <D.Kamalakannan_at_gecapital.com>
Date: Mon, 10 Jul 2000 15:15:32 +0200
Message-Id: <10554.111531@fatcity.com>

Hi,
I would like to Know on How can I find out who has logged in this partiular date " xx/xx/xxxx" in Solaris 2.6.
I dont find any logs on /var/adm/acct or
/var/adm directory

$ ls

log         messages.1  passwd      sulog       vold.log
aculog      messages    messages.2  sa          utmp        wtmp
lastlog     messages.0  messages.3  spellhist   utmpx       wtmpx

or in

/var/audit

or in /var/log
So I would like to know if there is any way of finding the logs of what commands are issued on a Particular date with respect to Solaris (I am using 2.6).
And How to find out who has issued a Truncate command on a particular table in a particular date on Oracle 8.1.6 running on Solaris 2.6 Received on Mon Jul 10 2000 - 08:15:32 CDT