oracle死锁处理方法

浏览数：20 / 时间：2015年06月12日

招数一：
   1. 查看被锁的表：
   2.   select   p.spid,c.object_name,b.session_id,b.oracle_username,b.os_user_name   from   v$process   p,v$session   a,   v$locked_object   b,all_objects   c   where   p.addr=a.paddr   and   a.process=b.process   and   c.object_id=b.object_id
   3.
   4.   解锁：
   5.   alter   system     kill   session   ‘146‘;(其中146为锁住的进程号)

招数二：
   1. SELECT   sn.username, m.SID,sn.SERIAL#, m.TYPE,
   2.          DECODE (m.lmode,
   3.                  0, ‘None‘,
   4.                  1, ‘Null‘,
   5.                  2, ‘Row Share‘,
   6.                  3, ‘Row Excl.‘,
   7.                  4, ‘Share‘,
   8.                  5, ‘S/Row Excl.‘,
   9.                  6, ‘Exclusive‘,
10.                  lmode, LTRIM (TO_CHAR (lmode, ‘990‘))
11.                 ) lmode,
12.          DECODE (m.request,
13.                  0, ‘None‘,
14.                  1, ‘Null‘,
15.                  2, ‘Row Share‘,
16.                  3, ‘Row Excl.‘,
17.                  4, ‘Share‘,
18.                  5, ‘S/Row Excl.‘,
19.                  6, ‘Exclusive‘,
20.                  request, LTRIM (TO_CHAR (m.request, ‘990‘))
21.                 ) request,
22.          m.id1, m.id2
23.     FROM v$session sn, v$lock m
24.    WHERE (sn.SID = m.SID AND m.request != 0)         --存在锁请求，即被阻塞
25.       OR (    sn.SID = m.SID                         --不存在锁请求，但是锁定的对象被其他会话请求锁定
26.           AND m.request = 0
27.           AND lmode != 4
28.           AND (id1, id2) IN (
29.                         SELECT s.id1, s.id2
30.                           FROM v$lock s
31.                          WHERE request != 0 AND s.id1 = m.id1
32.                                AND s.id2 = m.id2)
33.          )
34. ORDER BY id1, id2, m.request;
35.
36. alter system kill session ‘91‘;
37. alter system kill session ‘144,633‘;
38. alter system kill session ‘91,21‘;
39. alter system kill session ‘112,5772‘;