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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
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--alter system kill session 't2.sid,t2.serial#'
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¡¡¡¡ 255. CHARTOROWID(CHAR)
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¡¡¡¡ SELECT NAME from BSEMPMS WHERE ROWID=CHARTOROWID('AAAAfZAABAAACp8AAO');
¡¡¡¡ NAME : LEIXUE
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403. V$PROXY_ARCHIVEDLOG
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404. V$PROXY_DATAFILE
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902. CHAINGE_SOURCES
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