单项选择题
A. Allow the database to continue running, drop the TEMP tablespace, and then re-create it with new tempfiles
B. Shut down the database, restore and recover the tempfile from backup, and then open the database with RESETLOGS
C. Allow the database to continue running, take the TEMP tablespace offline, drop the missing tempfile, and then create a new tempfile
D. Allow the database to continue running, add a new tempfile to TEMP tablespace with a new name, and drop the tempfile that has been corrupted.
单项选择题 The BACKUP_TAPE_IO_SLAVES parameter is set to FALSE for the database instance. Which statement is true while performing a tape backup in an RMAN session?（）
单项选择题 Examine the following ALTER command: SQL> ALTER DISKGROUP dgroup1 UNDROP DISKS; What is the purpose of the command?（）
单项选择题 You are using Recovery Manager (RMAN) with a recovery catalog to back up your production database. The backups and the archived redo log files are copied to a tape drive on a daily basis. Because of media failure, you lost your production database completely along with the recovery catalog database. You want to recover the target database and make it functional. You consider performing the following steps to accomplish the task: Which option illustrates the correct sequence that you must use?（）