关于oracle死锁
如果仅仅是lock，以下语句可以发现所有用户锁 :
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
如果有锁等待或死锁，可以通过以下语句发现:
select lpad(' ', decode(l.xidusn, 0, 3, 0)) || l.oracle_username User_name,
o.owner,
o.object_name,
o.object_type
from v$locked_object l, dba_objects o
where l.object_id = o.object_id
order by o.object_id desc
相关文档：
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NAME TYPE
------------------------------------ --------------------- ......
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You see parent (and solitary) latches from x$ksll ......
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下面一排排的叫你选择第几页，一选择，直接就跳到后面的几页去了，不用这样从上� ......
配置文件：
<hibernate-mapping>
<class name="vo.SshPost" table="ssh_post" >
<!-- <cache usage="read-write"/>-->
<id name="postId" type="java.lang.String">
......
INTERVAL DAY TO SECOND数据类型
Oracle语法:
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) ] } ......
