How to view session stats?

To see current stats of your session, one can run the following query.
SELECT a.name, b.value FROM v$statname a, v$mystat b WHERE a.statistic# = b.statistic#;

To view session stats of another session one can run the query below passing the session id.
SELECT a.name, b.value FROM v$statname a, v$mystat b WHERE a.statistic# = b.statistic# and sid = &v_sid;