Check Oracle Hidden paraleetrs

 

SET LINES 999
SET PAGES 300
COL "PARAMETER" FOR A40 
COL "IS_DEFAULT" FOR A10
COL "SESSION" FOR A10
COL "INSTANCE" FOR A10
COL "IS_SESSION_MODIFIABLE" FOR A21
COL "IS_SYSTEM_MODIFIABLE" FOR A20

SELECT a.KSPPINM "PARAMETER", 
       b.KSPPSTDF "IS_DEFAULT",
       b.KSPPSTVL "SESSION", 
       c.KSPPSTVL "INSTANCE",
       DECODE(BITAND(a.KSPPIFLG/256,1),1,'TRUE','FALSE') IS_SESSION_MODIFIABLE, 
       DECODE(BITAND(a.KSPPIFLG/65536,3),1,'IMMEDIATE',2,'DEFERRED',3,'IMMEDIATE','FALSE') IS_SYSTEM_MODIFIABLE
FROM   X$KSPPI  a,
       X$KSPPCV b,
       X$KSPPSV c
WHERE  a.INDX = b.INDX
AND    a.INDX = c.INDX
AND    a.KSPPINM LIKE '/_%' escape '/'
AND    a.KSPPINM LIKE NVL('%&hidden_parameter%','')
/




SELECT a.ksppinm "Parameter", b.KSPPSTDF "Default Value",
       b.ksppstvl "Session Value", 
       c.ksppstvl "Instance Value",
       decode(bitand(a.ksppiflg/256,1),1,'TRUE','FALSE') IS_SESSION_MODIFIABLE,
       decode(bitand(a.ksppiflg/65536,3),1,'IMMEDIATE',2,'DEFERRED',3,'IMMEDIATE','FALSE') IS_SYSTEM_MODIFIABLE
FROM   x$ksppi a,
       x$ksppcv b,
       x$ksppsv c
WHERE  a.indx = b.indx
AND    a.indx = c.indx
AND    a.ksppinm LIKE '/_%' escape '/'
/


SELECT a.ksppinm "Parameter",
decode(bitand(ksppiflg/524288,1),1,'TRUE','FALSE') ISPDB_MODIFIABLE
FROM x$ksppi a
WHERE a.ksppinm LIKE '/_clusterwide_global_transactions' escape '/'



References:

How To Query And Change The Oracle Hidden Parameters In Oracle 10g and Later (Doc ID 315631.1)

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