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How to Revert Changes Made to Spfile Without Any Pfile/Spfile Backups? (Doc ID 397795.1)

Last updated on DECEMBER 02, 2019

Applies to:

Oracle Database - Enterprise Edition - Version and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.


You have altered your database parameters using the alter system set commands and after shutting down the database you are unable to bring the database back up.  You do not have a backup of the good spfile and you do not have an init.ora to use to bring up the database.  You want to revert back to the original settings but are unsure how to accomplish this.


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