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Oracle® Database Reference
10g Release 2 (10.2)

Part Number B14237-02
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DB_UNIQUE_NAME

Property Description
Parameter type String
Syntax DB_UNIQUE_NAME = database_unique_name
Default value Database instances: the value of DB_NAME

Automatic Storage Management instances: +ASM

Modifiable No
Basic Yes
Real Application Clusters Multiple instances must have the same value.

DB_UNIQUE_NAME specifies a globally unique name for the database. Databases with the same DB_NAME within the same DB_DOMAIN (for example, copies of a database created for reporting or a physical standby) must have a unique DB_UNIQUE_NAME. Every database's DB_UNIQUE_NAME must be unique within the enterprise.

The value of DB_UNIQUE_NAME can be up to 30 characters and is case insensitive. The following characters are valid in a database name: alphanumeric characters, underscore (_), number sign (#), and dollar sign ($).


See Also:

Oracle Data Guard Concepts and Administration and Oracle Database Administrator's Guide for more information on setting this parameter