rman-set newname for database

set newname for database;

RMAN supports the following commands, listed in order of precedence:
SET NEWNAME FOR DATAFILE and SET NEWNAME FOR TEMPFILE
SET NEWNAME FOR TABLESPACE
SET NEWNAME FOR DATABASE

Substitution Variables for the SET NEWNAME Command

Use one of the following techniques to provide alternate names for non-OMF or non-ASM duplicate database files:

用法1：

run
{
set newname for database to '/oracle2/database/%b';
duplicate database 'db12' to 'dup'
logfile group 1 ('/oracle2/database/logs/r1.f','/ oracle2/database/logs/r2.f') size 4m reuse, 
        group 2 ('/ oracle2/database/logs/r3.f','/oracle2/database/logs/r4.f') size 4m reuse
backup location '/backups/db_files';
}