OCP 1Z0 053 100

100.Examine the following command that is used to duplicate a database on the same host: 

RMAN> RUN 

{

ALLOCATE AUXILIARY CHANNEL, aux 1 DEVICE TYPE DISK;

DUPLICATE TARGET DATABASE TO auxdb SKIP READONLY; \ } 

Which two statements describe the effect after the database is duplicated successfully? (Choose two) 

A. The data files of the read-only tablespaces in the target database are not duplicated 

B. The read-only tablespaces in the target database are still defined in new the database 

C. The read-only tablespaces in the target database are changed to online after duplication 

D. The data files of the read-only tablespaces in the target database get duplicated 

E. The read-only tablespaces in the target database are not defined in the new database 

Answer: AB

因資料字典中仍然有該tablespace的定義，是以目标庫中同樣也有該tablespace的定義。

http://docs.oracle.com/cd/E11882_01/backup.112/e10643/rcmsynta020.htm#RCMRF90163

SKIP READONLY

Excludes data files in current read-only tablespaces from the duplicate database. By default RMAN duplicates current read-only tablespaces. If a tablespace is currently read/write, but you use  untilClause  to duplicate the database to an SCN at which the tablespace was read-only, then RMAN does not include the tablespace in the duplicate database. Tablespaces that were read-only previously are considered offline tablespaces and so are not included in the duplication. Note: The read-only tablespaces must be self-contained for the  DUPLICATE  command to succeed with this option.