多项选择题
A. Creating the control file for the duplicate database
B. Restoring the target data files to the duplicate database
C. Performing complete recovery using all available backups
D. Generating a new, unique DBID for the duplicate database
E. Copying the online redo log files from the target database to the duplicate database
单项选择题 Tape streaming is not happening while performing RMAN tape backup. On investigation, you find that it is not because of the incremental backup or the empty file backup and that RMAN is sending data blocks to the tape drive fast enough.What could be a solution to make tape streaming happen during the backup?（）
多项选择题 The user SYS creates a job by using the following command: Which two statements are true about the job that was created by the preceding command?（）
多项选择题 Which three tasks can be performed using a duplicate database?（）