Oracle查看隐藏参数

隐藏参数 (hidden parameters) ，由0racle内部使用，以

隐藏参数 (hidden parameters) ，由0racle内部使用，以 '_' 开头。

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 'http://www.linuxeden.com/'

ORDER BY REPLACE (i.ksppinm, '_', '');

SELECT ksppinm, ksppstvl, ksppdesc

FROM x$ksppi x, x$ksppcv y

WHERE x.indx = y.indx AND TRANSLATE (ksppinm, '_', '#') LIKE '#%';

示例：如果想查看_db_block_hash_buckets的参数值

SELECT ksppinm, ksppstvl, ksppdesc

FROM x$ksppi x, x$ksppcv y

WHERE x.indx = y.indx AND ksppinm = '_db_block_hash_buckets';