oracle如何设置show parameter显示隐含参数

   在sqlplus中show parameter是显示不了隐藏参数的，需要做一个处理，如下所示：

   以SYS用户登录：

C:\Documents and Settings\guogang>sqlplus / as sysdba;

SQL> create or replace view my_v$parameter_with_hidden (NUM,NAME , TYPE , DISPLAY_VALUE ,

 ISDEFAULT , ISSES_MODIFIABLE , ISSYS_MODIFIABLE ,ISMODIFIED ,

 ISADJUSTED, DESCRIPTION, UPDATE_COMMENT)

  as select x.indx+1,ksppinm,ksppity,ksppstvl,ksppstdf,

  decode(bitand(ksppiflg/256,1),1,'TRUE','FALSE'),

  decode(bitand(ksppiflg/65536,3),1,'IMMEDIATE',2,'DEFERRED', 3,'IMMEDIATE','FALSE'),

  decode(bitand(ksppstvf,7),1,'MODIFIED',4,'SYSTEM_MOD','FALSE'),

  decode(bitand(ksppstvf,2),2,'TRUE','FALSE'),

  ksppdesc,

  ksppstcmnt

  from x$ksppi x, x$ksppcv y

  where (x.indx = y.indx);

 

SQL> grant select on my_v$parameter_with_hidden to test;

 

     以普通用户登录：
C:\Documents and Settings\guogang>sqlplus test/test

SQL> create synonym v$parameter for sys.my_v$parameter_with_hidden ;

SQL> show parameter  _small_table_threshold

NAME                                 TYPE        VALUE

------------------------------------ ----------- ------------------------------

_small_table_threshold               integer     798