Session
1. Connected users list
set lines 100 pages 999 col ID format a15 select username , sid || ',' || serial# "ID" , status , last_call_et "Last Activity" from v$session where username is not null order by status desc , last_call_et desc /
2. Time since last user activity
set lines 100 pages 999 select username , floor(last_call_et / 60) "Minutes" , status from v$session where username is not null order by last_call_et /
3. Sessions sorted by logon time
set lines 100 pages 999 col ID format a15 col osuser format a15 col login_time format a14 select username , osuser , sid || ',' || serial# "ID" , status , to_char(logon_time, 'hh24:mi dd/mm/yy') login_time , last_call_et from v$session where username is not null order by login_time /
4.User information including OS process ID
col "SID/SERIAL" format a10 col username format a15 col osuser format a15 col program format a40 select s.sid || ',' || s.serial# "SID/SERIAL" , s.username , s.osuser , p.spid "OS PID" , s.program from v$session s , v$process p Where s.paddr = p.addr order by to_number(p.spid) /
5. Show users’ current SQL
Select sql_text
from v$sqlarea
where (address, hash_value) in
(select sql_address, sql_hash_value
from v$session
where username like '&username')
/
6. Session status associated with the specified OS process ID
select s.username , s.sid , s.serial# , p.spid , last_call_et , status from V$SESSION s , V$PROCESS p where s.PADDR = p.ADDR and p.spid='&pid' /
7. Show all active SQL
set feedback off
set serveroutput on size 9999
column username format a20
column sql_text format a55 word_wrapped
begin
for x in
(select username||'('||sid||','||serial#||') ospid = '|| process ||
' program = ' || program username,
to_char(LOGON_TIME,' Day HH24:MI') logon_time,
to_char(sysdate,' Day HH24:MI') current_time,
sql_address,
sql_hash_value
from v$session
where status = 'ACTIVE'
and rawtohex(sql_address) <> '00'
and username is not null ) loop
for y in (select sql_text
from v$sqlarea
where address = x.sql_address ) loop
if ( y.sql_text not like '%listener.get_cmd%' and
y.sql_text not like '%RAWTOHEX(SQL_ADDRESS)%' ) then
dbms_output.put_line( '--------------------' );
dbms_output.put_line( x.username );
dbms_output.put_line( x.logon_time || ' ' || x.current_time ||
' SQL#=' || x.sql_hash_value);
dbms_output.put_line( substr( y.sql_text, 1, 250 ) );
end if;
end loop;
end loop;
end;
/
8. List long operations
set lines 100 pages 999 col username format a15 col message format a40 col remaining format 9999 select username , to_char(start_time, 'hh24:mi:ss dd/mm/yy') started , time_remaining remaining , message from v$session_longops where time_remaining = 0 order by time_remaining desc /
9. List open cursors per user
a,
set pages 999
select sess.username
, sess.sid
, sess.serial#
, stat.value cursors
from v$sesstat stat
, v$statname sn
, v$session sess
where sess.username is not null
and sess.sid = stat.sid
and stat.statistic# = sn.statistic#
and sn.name = 'opened cursors current'
order by value
/
b,
set lines 100 pages 999
select count(hash_value) cursors
, sid
, user_name
from v$open_cursor
group by
sid
, user_name
order by
cursors
/