HomeOracleOracle Error ORA-12712: new character set must be a superset of old character set

Oracle Error ORA-12712: new character set must be a superset of old character set

Oracle Error Message

ORA-12712: new character set must be a superset of old character set

Reason for the Error

When you ALTER DATABASE … CHARACTER SET, the new character set must be a superset of the old character set. For example, WE8ISO8859P1 is not a superset of the WE8DEC.

Solution

Specify a superset character set.

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