user details in oracle

[amolso]

Hello

I would like to know whether I can see history of users logged in in oracle for a past few days. Currently our oracle has installed at remote server and I am accessing it using database links from my local oracle. If I want to who has logged on 2 days back and for what time how can I know it. Which system table contains this information.

Amol New to dba world, so please ......

 

[mrcomino]

no time, so quickly

The data dictionary of oracle store informatíon since the
last startup of the instance, if your DB is shutingdown and
startingup all days, perhaps you need to use AUDIT
(prevoiusly you must run cataudit.sql,...)

You also can use sqlnet-log, or even Operating system logs,
I need more information about your instalation and
your privileges....