单项选择题
A. The script will fail since you instructed RMAN to back up only one datafile rather than two
B. The script will successfully back up datafile 3 without error
C. The script will fail since it uses a substitution variable which is not supported
D. The execute script command will prompt for the value of and2 since it’s not included in the command
E. The script will fail because you cannot use the plus archivelog command when backing up
单项选择题 Upon starting your database, you receive the following error: You can choose from the following steps: 1.Restore the database datafiles. 2.Issue the alter database clear unarchived logfile group 1 command. 3.Issue the alter database open command. 4.Issue the alter database open resetlogs command. 5.Recover the database using point-in-time recovery. 6.Issue the Startup Mount command to mount the database. 7.Back up the database. Which is the correct order of these steps in this case?（）
多项选择题 TheRVPCusercandowhichofthefollowing？（）
单项选择题 Your database has experienced a loss of datafile users_01.dbf, which is associated with a ablespace called USERS. The database is still running. Which answer properly describes the rder of the steps that you would use to recover from this error?（） 1.Shut down the database. 2.Take the users_01.dbf datafile offline with the alter database command. 3.Restore the users_01.dbf datafile from backup media with the required archived redo logs. 4.Restore all users tablespace-related datafiles from backup media. 5.Issue the recover tablespace users command. 6.Issue the recover datafile users_01.dbf command. 7.Start up the database. 8.Bring the users_01.dbf datafile online with the alter database command.