How to check locked session?

Hi all,
How do I check locked session,or which tables has been locked.and how to kill the lock session. i would need to do it in sqlplus. we'r not allowed to use toad.

SELECT sess.osuser AS OsUser, NVL (sess.program, sess.module) AS
Program, sess.terminal AS Terminal,
obj.Object_Name AS TABLE_NAME,
DBMS_ROWID.rowid_create (1, ROW_WAIT_OBJ#, ROW_WAIT_FILE#,
ROW_WAIT_BLOCK#, ROW_WAIT_ROW#) AS ROW_ID
FROM dba_objects obj, v$session sess
WHERE sess.SID IN (SELECT a.SID
FROM v$lock a, v$session b
WHERE (id1, id2) IN (SELECT b.id1, b.id2
FROM v$lock b
WHERE b.id1 = a.id1 AND
b.id2 = a.id2 AND b.request > 0)
AND a.SID = b.SID
AND a.lmode = 0)
AND obj.object_id = sess.ROW_WAIT_OBJ#)

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How to check Locking sessions in oracle 10g

Hi,
I have tried to get locking sessions. i got the blocking session by using v$lock view.
Pls help how to get locking sessions.
Regards,
Venkat

Hi Venkat
Or just run this independent of database version
select a.sid blocker, 'is blocking the session ', b.sid blockee from v$lock a, v$lock b
where a.block =1 and b.request > 0 and a.id1=b.id1 and a.id2=b.id2;You can extend this query to find the username and machine (plus all other details) from v$session using the a.sid and b.sid from above
To find the blocking session_
SELECT S.SID, S.SQL_ID, S.USERNAME, S.MACHINE from
V$SESSION S WHERE S.SID = (SELECT blocker from
(select a.sid blocker, 'is blocking the session ', b.sid blockee from v$lock a, v$lock b
where a.block =1 and b.request > 0 and a.id1=b.id1 and a.id2=b.id2
*_To find the blocked session_*SELECT S.SID, S.SQL_ID, S.USERNAME, S.MACHINE from
V$SESSION S WHERE S.SID = (SELECT blockee from
(select a.sid blocker, 'is blocking the session ', b.sid blockee from v$lock a, v$lock b
where a.block =1 and b.request > 0 and a.id1=b.id1 and a.id2=b.id2
Edited : Added blocker and blockee code

How to check users session

hi,
I need to check user session like how much cpu a particular user consuming, user's session time and what activity he is doing(i.e. how many sql statement worked on and currently working).

The below query will give you details on :
SID/Serial, Foreground, Shadow, OS User, Ora User, User Module, Status Flags, Tran Active, Login Time, Last Call, Lock/Latch, Latch Spin, Current SQL stmt, Previous SQL stmt, Session Waits, WAITED Locks.
set serveroutput on size 50000
set echo off feed off veri off
accept 1 prompt 'Enter Unix process id: '
DECLARE
v_sid number;
s sys.v_$session%ROWTYPE;
p sys.v_$process%ROWTYPE;
BEGIN
begin
    select sid into v_sid
    from   sys.v_$process p, sys.v_$session s
    where p.addr     = s.paddr
      and (p.spid    = &&1
       or   s.process = '&&1');
exception
    when no_data_found then
      dbms_output.put_line('Unable to find process id &&1!!!');
      return;
    when others then
      dbms_output.put_line(sqlerrm);
      return;
end;
select * into s from sys.v_$session where sid = v_sid;
select * into p from sys.v_$process where addr = s.paddr;
dbms_output.put_line('=====================================================================');
dbms_output.put_line('SID/Serial : '|| s.sid||','||s.serial#);
dbms_output.put_line('Foreground : '|| 'PID: '||s.process||' - '||s.program);
dbms_output.put_line('Shadow      : '|| 'PID: '||p.spid||' - '||p.program);
dbms_output.put_line('Terminal    : '|| s.terminal || '/ ' || p.terminal);
dbms_output.put_line('OS User     : '|| s.osuser||' on '||s.machine);
dbms_output.put_line('Ora User    : '|| s.username);
dbms_output.put_line('User Module : '|| s.module);
dbms_output.put_line('Status Flags: '|| s.status||' '||s.server||' '||s.type);
dbms_output.put_line('Tran Active : '|| nvl(s.taddr, 'NONE'));
dbms_output.put_line('Login Time : '|| to_char(s.logon_time, 'Dy HH24:MI:SS'));
dbms_output.put_line('Last Call   : '|| to_char(sysdate-(s.last_call_et/60/60/24), 'Dy HH24:MI:SS') || ' - ' || to_char(s.last_call_et/60, '990.0') || ' min');
dbms_output.put_line('Lock/ Latch : '|| nvl(s.lockwait, 'NONE')||'/ '||nvl(p.latchwait, 'NONE'));
dbms_output.put_line('Latch Spin : '|| nvl(p.latchspin, 'NONE'));
dbms_output.put_line('Current SQL statement:');
for c1 in ( select * from sys.v_$sqltext
              where HASH_VALUE = s.sql_hash_value order by piece) loop
    dbms_output.put_line(chr(9)||c1.sql_text);
end loop;
dbms_output.put_line('Previous SQL statement:');
for c1 in ( select * from sys.v_$sqltext
              where HASH_VALUE = s.prev_hash_value order by piece) loop
    dbms_output.put_line(chr(9)||c1.sql_text);
end loop;
dbms_output.put_line('Session Waits:');
for c1 in ( select * from sys.v_$session_wait where sid = s.sid) loop
    dbms_output.put_line(chr(9)||c1.state||': '||c1.event);
end loop;
-- dbms_output.put_line('Connect Info:');
-- for c1 in ( select * from sys.v_$session_connect_info where sid = s.sid) loop
--    dbms_output.put_line(chr(9)||': '||c1.network_service_banner);
-- end loop;
dbms_output.put_line('Locks:');
for c1 in ( select /*+ ordered */
          decode(l.type,
          -- Long locks
                      'TM', 'DML/DATA ENQ',   'TX', 'TRANSAC ENQ',
                      'UL', 'PLS USR LOCK',
          -- Short locks
                      'BL', 'BUF HASH TBL', 'CF', 'CONTROL FILE',
                      'CI', 'CROSS INST F', 'DF', 'DATA FILE   ',
                      'CU', 'CURSOR BIND ',
                      'DL', 'DIRECT LOAD ', 'DM', 'MOUNT/STRTUP',
                      'DR', 'RECO LOCK   ', 'DX', 'DISTRIB TRAN',
                      'FS', 'FILE SET    ', 'IN', 'INSTANCE NUM',
                      'FI', 'SGA OPN FILE',
                      'IR', 'INSTCE RECVR', 'IS', 'GET STATE   ',
                      'IV', 'LIBCACHE INV', 'KK', 'LOG SW KICK ',
                      'LS', 'LOG SWITCH ',
                      'MM', 'MOUNT DEF   ', 'MR', 'MEDIA RECVRY',
                      'PF', 'PWFILE ENQ ', 'PR', 'PROCESS STRT',
                      'RT', 'REDO THREAD ', 'SC', 'SCN ENQ     ',
                      'RW', 'ROW WAIT    ',
                      'SM', 'SMON LOCK   ', 'SN', 'SEQNO INSTCE',
                      'SQ', 'SEQNO ENQ   ', 'ST', 'SPACE TRANSC',
                      'SV', 'SEQNO VALUE ', 'TA', 'GENERIC ENQ ',
                      'TD', 'DLL ENQ     ', 'TE', 'EXTEND SEG ',
                      'TS', 'TEMP SEGMENT', 'TT', 'TEMP TABLE ',
                      'UN', 'USER NAME   ', 'WL', 'WRITE REDO ',
                      'TYPE='||l.type) type,
       decode(l.lmode, 0, 'NONE', 1, 'NULL', 2, 'RS', 3, 'RX',
                       4, 'S',    5, 'RSX', 6, 'X',
                       to_char(l.lmode) ) lmode,
       decode(l.request, 0, 'NONE', 1, 'NULL', 2, 'RS', 3, 'RX',
                         4, 'S', 5, 'RSX', 6, 'X',
                         to_char(l.request) ) lrequest,
       decode(l.type, 'MR', o.name,
                      'TD', o.name,
                      'TM', o.name,
                      'RW', 'FILE#='||substr(l.id1,1,3)||
                            ' BLOCK#='||substr(l.id1,4,5)||' ROW='||l.id2,
                      'TX', 'RS+SLOT#'||l.id1||' WRP#'||l.id2,
                      'WL', 'REDO LOG FILE#='||l.id1,
                      'RT', 'THREAD='||l.id1,
                      'TS', decode(l.id2, 0, 'ENQUEUE', 'NEW BLOCK ALLOCATION'),
                      'ID1='||l.id1||' ID2='||l.id2) objname
       from sys.v_$lock l, sys.obj$ o
       where sid   = s.sid
         and l.id1 = o.obj#(+) ) loop
    dbms_output.put_line(chr(9)||c1.type||' H: '||c1.lmode||' R: '||c1.lrequest||' - '||c1.objname);
end loop;
dbms_output.put_line('=====================================================================');
END;
undef 1
set feedback on;
set veri on;

How to check lock status of field in current document?

Hi,
How to check the status of field in current document(master agreement), that is whether its locked or not.
I locked "Publish to Supplier" checkbox after MA is saved first time. Now, I want to check the status whether this field is locked or not in the same document.
IsLockOwner( ) is not returning the correct value. Its not giving the current document field lock status.
Is there any way to get current document field status?
Thanks,
Saloni

Hi,
If I understand correctly, your requirement is to get the value of this field "Publish to Supplier on". It can be achieved by writing the below:
isVendorVisible = doc.getExtensionField("VENDOR_VISIBLE").get();
Meaning, if the box is checked, it will return a value = true and if not then false.
Hope this helps,
Regards,
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How to check user/session generating a lot of archivelogs?

Hi,
On a 10g database, How do i look for the user/session that is generating a lot of archivelogs?
thanks in advance,

For currently connected sessions, you could query V$SESSTAT (joining to V$STATNAME). Thus,
select s.sid, s.value
from v$sesstat s, v$statname n
where s.statistic#=n.statistic#
and n.name = 'redo size'
order by 2
/However, there are a few complications :
1. Persistent Sessions will show up with very high statistics, simply because they haven't disconnected. Many applications maintain Persistent Sessions for either of
a. Monitoring and Running User Submitted or ScheduleD Jobs (eg in Oracle EBusiness Suite or Peoplesoft)
b. Connection Pooling
2. Sessions that have already disconnected will not appear in your report.
Therefore, you'd have to "sample" sessions frequently and find the incremental redo size. Then, another complication hits you :
c. Oracle reuses Session IDs. Once a session disconnects, another connecting session may get the same SID. It wouldn't get the same SERIAL# immediately so you might want to use a combination of SID+SERIAL# from V$SESSION as your key (you'd have to add V$SESSION into your monitoring query) Even then, I wouldn't guarantee that the pair wouldn't repeat after some time, particularly with instance restarts.
You'd be better of using AUDSID from V$SESSION as that value is incremented (and not reused) by session auditing.

How to check MWA session details in Oracle Apps R12

I am an Oracle Apps DBA. Current Issue is that sometimes users working with the RF Guns(Scanners) through telnet in MWA servers got hanged.
They ask to kill their sessions.
I do not know how to find the MWA loged in users sessions details. What I am able to find is , frm or web session details.
Could you please guide how to gather these MWA connection details, with database and server process and session details.
Thanks in advance for ur support.
Regards,
KMISRA

Koushikinath wrote:
I am an Oracle Apps DBA. Current Issue is that sometimes users working with the RF Guns(Scanners) through telnet in MWA servers got hanged.
They ask to kill their sessions.
I do not know how to find the MWA loged in users sessions details. What I am able to find is , frm or web session details.
Could you please guide how to gather these MWA connection details, with database and server process and session details.
Thanks in advance for ur support.
Regards,
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MWA Server Hangs on R12 Environments [ID 559614.1]
Which parameters control the maximum number of user connections per MWA listener [ID 567214.1]
Mobile Web Applications (MWA) Troubleshooting Tips for Release 12 Mobile Web Applications Server [ID 782162.1]
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Mobile Web Applications Server - MWA Troubleshooting Tips for E-Business Suite 11i and R12 Oracle Mobile Application Server [ID 269991.1]
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How to check blocking locks

I have a query as to how to check for blocking locks in the database. I am trying to check it from TOAD but the session of TOAD is hanging. I hope, my question is clear.
Please, help in solving the doubt.
regards

Hi user574290,
Here is other script:
clear screen
set serveroutput on
BEGIN
dbms_output.enable(1000000);
for do_loop in (select session_id, a.object_id, xidsqn, oracle_username, b.owner owner,
                b.object_name object_name, b.object_type object_type
                FROM v$locked_object a, dba_objects b
                   WHERE xidsqn != 0
                    and b.object_id = a.object_id)
loop
    dbms_output.put_line('.');
    dbms_output.put_line('Blocking Session   : '||do_loop.session_id);
     dbms_output.put_line('Object (Owner/Name): '||do_loop.owner||'.'||do_loop.object_name);
    dbms_output.put_line('Object Type        : '||do_loop.object_type);
     for next_loop in (select sid from v$lock
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                         and sid != do_loop.session_id)
     LOOP
          dbms_output.put_line('Sessions being blocked   : '||next_loop.sid);
    end loop;
end loop;
END;
/Best Regards,
Francisco Munoz Alvarez
www.oraclenz.com

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hello
How to check how long a session was opened?
thx

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
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Connected.
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Connected.
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TEST                           LOGON                        10/JANV. 19:32
TEST                           LOGOFF                       10/JANV. 19:32
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