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Which SPFILE Parameter File is Impacted when Issuing an ALTER SYSTEM Command? (Doc ID 138119.1)

Last updated on DECEMBER 11, 2023

Applies to:

Oracle Database - Enterprise Edition - Version 8.1.7.0 and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Generic UNIX

Purpose

PURPOSE

  You maintain several SPFILE files:

  $ ls -l spfile*
  -rw-r-----   1 sme      dba         2560 Mar 20 08:20 spfile.ora
  -rw-r-----   1 sme      dba         2560 Mar 20 08:20 spfile<SID>.ora

  Which one is modified when you run the "ALTER SYSTEM" SQL command to 
  permanently change parameter values in the spfile?

Scope

SCOPE & APPLICATION

  The DBAs must be cautious when using ALTER SYSTEM command since it permanently  
  modifies an SPFILE parameter file. 

  They need to know which parameter file will be modified.

Details

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