Oracle Host Environment
Version 12.1.0.1

General Information
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"We don't live in a dictatorship or a monarchy. I swore an oath in the military and in the Senate to preserve, protect and defend the Constitution of the United States, not to mindlessly cater to the whims of Cadet Bone Spurs and clap when he demands I clap,"
~ Sen. Tammy Duckworth
Purpose The entries on this page demonstrate ways, from within the Oracle database, to access information about the host hardware and operating system. There are ways to do it in the operating system shell environment but what is important, most often, is to see what the database has access to and what Oracle will be watching for licensing purposes.
 
Demos
Number of CPUs col value format 99999

SELECT value
FROM gv$osstat
WHERE stat_name = 'NUM_CPUS';
Amount of Physical Memory col value format 999999999999

SELECT value
FROM gv$osstat
WHERE stat_name = 'PHYSICAL_MEMORY_BYTES';
Operating System Endian Value SELECT dbms_utility.get_endianness
FROM dual;
Operating System Environment Variables set serveroutput on

DECLARE
 RetVal VARCHAR2(100);
BEGIN
  dbms_system.get_env('ORACLE_SID', RetVal);
  dbms_output.put_line(RetVal);
END;
/

DECLARE
 RetVal VARCHAR2(100);
BEGIN
  dbms_system.get_env('ORACLE_HOME', RetVal);
  dbms_output.put_line(RetVal);
END;
/

DECLARE
 RetVal VARCHAR2(100);
BEGIN
  dbms_system.get_env('TEMP', RetVal);
  dbms_output.put_line(RetVal);
END;
/

Related Topics
DBMS_SYSTEM
DBMS_UTILITY
Dynamic Performance Views
Unix and vi
What's New In 12cR1
What's New In 12cR2

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