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碰到一个小bug 2365821
作者: NinGoo(http://ningoo.itpub.net)发表于: 2007.03.22 15:56
分类: Oracle
出处: http://ningoo.itpub.net/post/2149/274003
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update:在Itpub论讨了该问题，有经验丰富的家伙给出了解决方法^_^
在mount状态的时候，如果你desc dba_*数据字典，会报错：
SYS@ning>select status from v$instance;
STATUS
------------
MOUNTED
SYS@ning>desc dba_data_files
ERROR:
ORA-04043: object dba_data_files does not exist
然后，即使你将数据库alter database open到open状态，还是会报同样的错误：
SYS@ning>alter database open;
Database altered.
SYS@ning>desc dba_data_files
ERROR:
ORA-04043: object dba_data_files does not exist
SYS@ning>select * from dba_data_files;
select * from dba_data_files
*
ERROR at line 1:
ORA-00942: table or view does not exist
SYS@ning>desc dba_temp_files;
Name Null? Type
----------------------------------------- -------- ----------------------------
FILE_NAME VARCHAR2(513)
FILE_ID NUMBER
TABLESPACE_NAME NOT NULL VARCHAR2(30)
BYTES NUMBER
BLOCKS NUMBER
STATUS CHAR(9)
RELATIVE_FNO NUMBER
AUTOEXTENSIBLE VARCHAR2(3)
MAXBYTES NUMBER
MAXBLOCKS NUMBER
INCREMENT_BY NUMBER
USER_BYTES NUMBER
USER_BLOCKS NUMBER
也就是说，只要你在mount状态下desct过某个dba视图，oracle就不认识它了，除非你重启数据库.
oracle说这个bug影响的版本为Oracle Server - Enterprise Edition - Version: <8.1.7.4 to 10.1.0.3
实际上，我上面的操作都是在10.2.0.3中，这么多版本了，oracle就一直没想过要修复这个问题？还是给出下面这种哭笑不得的解决方法：
1) Don't describe the dba_* views at mount stage.
2) If you issue DESC of any DBA_*views at mount stage, then shutdown and restart the
instance.
参考:
Note:296235.1
Bug 2365821
(需要引用, 请注明出处: http://ningoo.itpub.net)
