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 Èç¹û½ö½öÊÇlock£¬ÒÔÏÂÓï¾ä¿ÉÒÔ·¢ÏÖËùÓÐÓû§Ëø  :
SELECT 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.terminal,
       s.machine,
       s.program,
       s.osuser
  from v$session s, v$lock l, all_objects o
 WHERE l.sid = s.sid
   AND l.id1 = o.object_id(+)
   AND s.username is NOT Null
Èç¹ûÓÐËøµÈ´ý»òËÀËø£¬¿ÉÒÔͨ¹ýÒÔÏÂÓï¾ä·¢ÏÖ:
select lpad('   ', decode(l.xidusn, 0, 3, 0)) || l.oracle_username User_name,
       o.owner,
       o.object_name,
       o.object_type
  from v$locked_object l, dba_objects o
 where l.object_id = o.object_id
 order by o.object_id desc


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OracleÊý¾Ý¿â¼àÌýÅäÖÃ

½ü¶Îʱ¼äºÜ¶àÍøÓÑÌá³ö¼àÌýÅäÖÃÏà¹ØÎÊÌ⣬¿Í»§ÖÕ¶Ë(Client)ÎÞ·¨Á¬½Ó·þÎñÆ÷¶Ë(Server)¡£±¾ÎÄÏÖ¶Ô¼àÌýÅäÖÃ×÷Ò»¼òµ¥½éÉÜ£¬²¢Ìá³öһЩ¿Í»§ÖÕ¶ËÎÞ·¨Á¬½Ó·þÎñÆ÷¶ËµÄ½â¾ö˼·£¬Ô¸¶Ô¹ã´óÍøÓÑÓë¶ÁÕßÓÐһЩ°ïÖú¡£
 
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¡¡¡¡¼àÌýÆ÷ÊÇOracle»ùÓÚ·þÎñÆ÷¶ËµÄÒ»ÖÖÍøÂç·þÎñ£¬Ö÷ÒªÓÃÓÚ¼àÌý¿Í»§¶ËÏòÊý¾Ý¿â·þÎñÆ÷¶ËÌá ......

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<hibernate-mapping>
    <class name="vo.SshPost" table="ssh_post" >
     <!-- <cache usage="read-write"/>-->
        <id name="postId" type="java.lang.String">
     ......

Oracle INTERVAL DAY TO SECONDÊý¾ÝÀàÐÍ

INTERVAL DAY TO SECONDÊý¾ÝÀàÐÍ
OracleÓï·¨:
INTERVAL '{ integer | integer time_expr | time_expr }'
{ { DAY | HOUR | MINUTE } [ ( leading_precision ) ]
| SECOND [ ( leading_precision [, fractional_seconds_precision ] ) ] }
[ TO { DAY | HOUR | MINUTE | SECOND [ (fractional_seconds_precision) ] } ......
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