1、查詢被鎖資訊

    SELECT object_name, machine, s.sid, s.serial#
      FROM gv$locked_object l, dba_objects o, gv$session s
     WHERE l.object_id = o.object_id
       AND l.session_id = s.sid;

2、殺掉程序 sid,serial#，釋放Session

--alter system kill session 'sid, serial#'; 
ALTER system kill session '607, 23268'; 
 

--以下幾個為相關表
 

SELECT * FROM v$lock;
SELECT * FROM v$sqlarea;
SELECT * FROM v$session;
SELECT * FROM v$process ;
SELECT * FROM v$locked_object;
SELECT * FROM all_objects;
SELECT * FROM v$session_wait;

--檢視被鎖的表

select b.owner,b.object_name,a.session_id,a.locked_mode from v$locked_object a,dba_objects b where b.object_id = a.object_id;
 

--檢視那個使用者那個程序照成死鎖

select b.username,b.sid,b.serial#,logon_time from v$locked_object a,v$session b where a.session_id = b.sid order by b.logon_time;

--檢視連線的程序

SELECT sid, serial#, username, osuser FROM v$session;

查出鎖定表的sid, serial#,os_user_name, machine_name, terminal，鎖的type,mode

SELECT s.sid, s.serial#, s.username, s.schemaname, s.osuser, s.process, s.machine,
s.terminal, s.logon_time, l.type
FROM v$session s, v$lock l
WHERE s.sid = l.sid
AND s.username IS NOT NULL
ORDER BY sid;