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ORA-12721 Alter Database Character Set In Alert Log (Doc ID 2117855.1)

Last updated on FEBRUARY 14, 2023

Applies to:

Oracle Database - Enterprise Edition - Version to [Release 11.2 to 12.1]
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Backup Service - Version N/A and later
Information in this document applies to any platform.


Database was created using dbca and selected template : General purpose.

WE8ISO8859P15 is the selected character set. Post database creation NLS_DATABASE_PARAMETERS shows US7ASCII as the character set.

In Alert log below error is observed:

ORA-12721 signaled during: alter database character set INTERNAL_CONVERT WE8ISO8859P15...

Running the above sql statement from sql*plus fails with ORA-12721




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