forDbUniqueNameOption
Use the forDbUniqueNameOption subclause to specify either all databases or a specific database in a Data Guard environment.
The DBID for a primary database is identical to the DBID of its associated physical standby databases. A database is uniquely identified in the recovery catalog by a DBID and the value of its DB_UNIQUE_NAME initialization parameter.
When you specify forDbUniqueNameOption for any command, RMAN restricts its operations to the objects that are associated exclusively with the database with the specified DB_UNIQUE_NAME. For example, if you use this option with the LIST command, then RMAN lists only the objects associated exclusively with the database with the specified DB_UNIQUE_NAME. Objects that are not associated with any database (SITE_KEY column in the recovery catalog view is null) are not listed.
| Syntax Element | Description |
|---|---|
FOR DB_UNIQUE_NAME ALL |
Specifies all primary and standby databases in the recovery catalog that share the DBID of the target database (or DBID specified by the SET DBID command). |
FOR DB_UNIQUE_NAMEdb_unique_name |
Specifies the primary or standby database in the recovery catalog with the specified db_unique_name. |
Example 4-19 Listing Expired Backups Associated with a Standby Database
This example connects to a recovery catalog and sets the DBID for the Data Guard environment. All primary and standby databases in this environment share the same DBID. The LIST command lists all expired backups associated with database standby1:
RMAN> CONNECT CATALOG rman@catdb;
recovery catalog database Password: password
connected to recovery catalog database
RMAN> SET DBID 3257174182;
RMAN> LIST EXPIRED BACKUP FOR DB_UNIQUE_NAME standby1;