瑣表的查询和處理方法

查詢瑣表

select object_id,session_id,locked_mode from v$locked_object;

select t2.username,t2.sid,t2.serial#,t2.logon_time

from v$locked_object t1,v$session t2

where t1.session_id=t2.sid order by t2.logon_time;

SELECT /*+ rule */ s.username,

decode(l.type,'TM','TABLE LOCK',

'TX','ROW LOCK',

NULL) LOCK_LEVEL,

o.owner,o.object_name,o.object_type,

s.sid,s.serial#,s.paddr,s.terminal,s.machine,s.program,s.osuser

FROM v$session s,v$lock l,dba_objects o

WHERE l.sid = s.sid

AND l.id1 = o.object_id(+)

AND s.username is NOT Null

（注意：这里查询了v$session中的paddr，这和v$process中的addr对应）

查詢造成瑣表的語句

select sql_text from v$sql where sql_id in(select prev_sql_id from v$session where sid='SID');

處理瑣表

select sid,serial#,status,sql_address from v$session where sid=''

alter system kill session 'SID,SERIAL#'

OS层面查杀oracle死掉的会话

select pid,spid from v$process where addr='paddr'

ps -ef|grep LOCAL

kill -9 spid