为何有记录死锁的情况(对死锁的记录作任何更新操作都将挂起),并且在v$locked_table中找不到相应记录,使用下列语句也查询不到:select username, v$lock.SID, request
from v$session, v$lock
where v$lock.TYPE = 'TX' and v$lock.SID = v$session.SID;select l.SID,
s.SERIAL#,
s.USERNAME,
decode(block, 0, 'no', 'yes') as "block",
decode(request, 0, 'no', 'yes') as "wait"
from v$session s, v$lock l
where s.SID = l.SID and (request > 0 or block > 0);现数据库不能重启(7*24),该怎么办?
from v$session, v$lock
where v$lock.TYPE = 'TX' and v$lock.SID = v$session.SID;select l.SID,
s.SERIAL#,
s.USERNAME,
decode(block, 0, 'no', 'yes') as "block",
decode(request, 0, 'no', 'yes') as "wait"
from v$session s, v$lock l
where s.SID = l.SID and (request > 0 or block > 0);现数据库不能重启(7*24),该怎么办?
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V$LOCK, V$LOCKED_OBJECT, V$SESSION, V$SQLAREA, V$PROCESS ;
查詢鎖的表的方法:
SELECT S.SID SESSION_ID, S.USERNAME, DECODE(LMODE, 0, 'None', 1, 'Null', 2, 'Row-S (SS)', 3, 'Row-X (SX)', 4, 'Share', 5, 'S/Row-X (SSX)', 6, 'Exclusive', TO_CHAR(LMODE)) MODE_HELD, DECODE(REQUEST, 0, 'None', 1, 'Null', 2, 'Row-S (SS)', 3, 'Row-X (SX)', 4, 'Share', 5, 'S/Row-X (SSX)', 6, 'Exclusive', TO_CHAR(REQUEST)) MODE_REQUESTED, O.OWNER||'.'||O.OBJECT_NAME||' ('||O.OBJECT_TYPE||')', S.TYPE LOCK_TYPE, L.ID1 LOCK_ID1, L.ID2 LOCK_ID2 FROM V$LOCK L, SYS.DBA_OBJECTS O, V$SESSION S WHERE L.SID = S.SID AND L.ID1 = O.OBJECT_ID ; 如何解鎖?
ALTER SYSTEM KILL SESSION ‘SID,SERIR#’;