Lists all objects being accessed in the schema

SET LINESIZE 255
SET VERIFY OFF
COLUMN object FORMAT A30
SELECT a.object,
       a.type,
       a.sid,
       b.serial#,
       b.username,
       b.osuser,
       b.program
FROM   v$access a,
       v$session b
WHERE  a.sid    = b.sid
AND    a.owner  = DECODE(UPPER('&1'), 'ALL', a.object, UPPER('&1'))
AND    a.object = DECODE(UPPER('&2'), 'ALL', a.object, UPPER('&2'))
ORDER BY a.object;