让show parameter显示隐含参数(12C)

1.创建视图show_hidden_v$parameter

create or replace view show_hidden_v$parameter                                                                                       
(inst_id,NUM , NAME , TYPE , VALUE , DISPLAY_VALUE, ISDEFAULT , ISSES_MODIFIABLE , ISSYS_MODIFIABLE , ISPDB_MODIFIABLE , ISINSTANCE_MODIFIABLE, ISMODIFIED , ISADJUSTED , ISDEPRECATED, ISBASIC, DESCRIPTION, UPDATE_COMMENT, HASH, CON_ID)
as       
select x.inst_id,
       x.indx + 1,
       ksppinm,
       ksppity,
       ksppstvl,
       ksppstdvl,
       ksppstdf,
       decode(bitand(ksppiflg / 256, 1), 1, 'TRUE', 'FALSE'),
       decode(bitand(ksppiflg / 65536, 3),
              1,
              'IMMEDIATE',
              2,
              'DEFERRED',
              3,
              'IMMEDIATE',
              'FALSE'),
       decode(bitand(ksppiflg / 524288, 1), 1, 'TRUE', 'FALSE'),
       decode(bitand(ksppiflg, 4),
              4,
              'FALSE',
              decode(bitand(ksppiflg / 65536, 3), 0, 'FALSE', 'TRUE')),
       decode(bitand(ksppstvf, 7), 1, 'MODIFIED', 4, 'SYSTEM_MOD', 'FALSE'),
       decode(bitand(ksppstvf, 2), 2, 'TRUE', 'FALSE'),
       decode(bitand(ksppilrmflg / 64, 1), 1, 'TRUE', 'FALSE'),
       decode(bitand(ksppilrmflg / 268435456, 1), 1, 'TRUE', 'FALSE'),
       ksppdesc,
       ksppstcmnt,
       ksppihash,
       x.con_id
  from x$ksppi x, x$ksppcv y
 where (x.indx = y.indx);

2.授权一下

SQL> grant select on show_hidden_v$parameter to C##YB;
SQL> conn C##YB/YB
SQL> create synonym v$parameter for sys.show_hidden_v$parameter;