check last successful login timestamp

[zitot]

I have enabled logon history and would like to check when the last successful logon was.

I looked at %APPDATA%\PLSQL Developer 15\Preferences\\user.prefs and it has this section (changed to Abcdefg.. wasn't sure if that was sensitive)

[LogonHistory]

X.Abcd+efg123=
X.HiJkL/Mnop000
X.qrstuvwxyz==

i don't know what to do next.

 

[Marco Kalter]

The login timestamps are not stored. You can use standard Oracle auditing to audit login and logoff actions (AUDIT SESSION command).