Check this table "v$open_cursor" . (but you must be have a permision to read)
select a.SID ,a.PROGRAM ,USERNAME, OSUSER, LOGON_TIME , machine ,STATUS, program , SQL_TEXT ,
-- ( to_char(round(last_call_et/1440,2)) ) last_call_HH ,
MIN_TO_HH24MI( TXTOMINUTE( to_char(round(last_call_et/1440,2))...