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select sess.sid,
    sess.serial#,
    lo.oracle_username,
    lo.os_user_name,
    ao.object_name,
    lo.locked_mode
    from v$locked_object lo,
    dba_objects ao,
    v$session sess
where ao.object_id = lo.object_id and lo.session_id = sess.sid;
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alter   system     kill   session   'sid,serial#';
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alter system kill session '1458,15829';


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  for item in (select * from user_constraints a where a.constraint_type = 'R') loop
  execute immediate 'alter table ' || item.table_name || ' disable constraint ' || item.constraint_name;
  end loop;
end;
/ ......

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alter database rename global_name to orcl.us.oracle.com ÐÞ¸ÄÊý¾Ý¿âµÄÈ«¾ÖÊý¾Ý¿âÃûΪorcl.us.oracle.com
2¡¢ÔÚÐé»ú188ÉÏ´´½¨Êý¾Ý¿âviotest£¬global_name=viotest£¬Ê¹ÓÃÓï¾ä
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