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--查看
select a.object_name,b.session_id,c.serial#,c.program,c.username,c.command,c.machine,c.lockwait 
from all_objects a,v$locked_object b,v$session c where a.object_id=b.object_id and c.sid=b.session_id;
--解锁
alter system kill session'session_id,serial#';
--例句
alter system kill session'453,10316';