Oracle update or alter table is locked issue

\\ query is locked object, source, sid and serial

select object_name, machine, s.sid, s.serial#
from v$locked_object l, dba_objects o, v$session s
where l.object_id　 = 　o.object_id
and l.session_id = s.sid

\\ kill session link, SID and SERIAL correspond to the

alter system kill session '333,9767'; 

\\ If the error, do the following:

Despite the error, but certainly the state has become a state KILLED

select a.spid,b.sid,b.serial#,b.username 
from v$process a,v$session b 
where a.addr=b.paddr 
and b.status='KILLED';

\\ inquiry system thread ID, a spid, to query spid

select b.spid,a.osuser,b.program 
  from v$session a,v$process b 
 where a.paddr=b.addr 
   and a.sid=SID

\\ Log database system OS, execute the following command

kill -9 SPID　

 

Reference website:

http://blog.sina.com.cn/s/blog_5ceb51480102w8et.html