So many times we need to check the hidden parameters of Oracle. Sometimes we forgot the script of data dictionary views for writing SQL script.
Here I am providing you SQL script for checking hidden parameters of Oracle. For executing this script, you should need to login as SYSDBA. Because only X$ tables are providing hidden parameters and value detailing. For performing tasks of database administration, it is a very keen idea to keep in mind the value of some hidden parameters.
Hidden Parameter checking Script:
SQL> SELECT ksppinm name,
FROM x$ksppi x, x$ksppcv y
WHERE (x.indx = y.indx)
AND ksppinm LIKE ‘_%’ ESCAPE ”
ORDER BY name;
From Oracle 10g, their new hidden parameters with double underscore were introduced. Those parameters are specially for Automatic Shared Memory Management (ASMM) feature. In short, you should need to keep in mind for same.
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