prompt <h2>Who is connected ? </h2>

set pages 999 lines 200

col PROGRAM for a35

col MACHINE for a20

col OSUSER for a10

ALTER SESSION SET NLS_DATE_FORMAT='YYYY/MM/DD HH24:MI:SS';

SELECT
    OSUSER,
    MACHINE,
    PROGRAM,
    STATE,
    LOGON_TIME,
    EVENT
FROM
    V$SESSION
ORDER BY
    LOGON_TIME ASC;