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

RMAN>RUN

{

ALLOCATE AUXILIARY CHANNEL aux1 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

答案：（A、B）

解析：

DUPLICATE...SKIP READONLY

在复制数据库的过程中排除当前只读表空间的数据文件. 默认RMAN复制当前只读的表空间.

如果一个表空间当前为read/write,但你使用了untilClause来复制数据库到一个SCN（此时该表空间为只读),则RMAN在复制数据库中不包含该表空间.

之前只读的表空间被认为是脱机的表空间,因此不包含在复制中.

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Oracle 11G OCP 1Z0-053 100