要用戶sys纔可以查到該視圖
--查看所有的隱藏參數
select i.ksppinm name,i.ksppdesc description,
cv.ksppstvl value,
cv.ksppstdf isdefault,
decode(bitand(cv.ksppstvf, 7),
1,
'MODIFIED',
4,
'SYSTEM_MOD',
'FALSE') ismodified,
decode(bitand(cv.ksppstvf, 2), 2, 'TRUE', 'FALSE') isadjusted
from sys.x$ksppi i, sys.x$ksppcv cv
where i.inst_id = userenv('Instance')
and cv.inst_id = userenv('Instance')
and i.indx = cv.indx
and i.ksppinm like '/_%' escape '/'
order by replace(i.ksppinm, '_', '');
--查看_system_trig_enabled的值
select a.ksppinm parameter, b.ksppstvl value
from x$ksppi a,
x$ksppcv b Where a.indx = b.indx and ksppinm = '_system_trig_enabled';