backup
举一反三
- When youre performing active database duplication，a backup of what kind is required？（） A: A current RMAN backup-set backup is required. B: No backup is required. C: An RMAN image backup is required. D: A manual backup is required. E: A "duplicate" preparatory backup is required.
- 备份整个数据库使用（ ）命令完成。 A: BACKUP TABLESPACE B: BACKUP DATABASE C: BACKUP TABLE D: RESTORE DATABASE
- 仅仅备份表空间使用（ ）命令完成。 A: BACKUP TABLESPACE B: BACKUP DATABASE C: BACKUP TABLE D: RESTORE TABLESPACE
- backup
- 【选出最佳答案】backup