本文详细介绍了Oracle Recovery Manager (RMAN)，一种用于高效备份和恢复Oracle数据库的命令行和企业级工具。RMAN能够进行块级损坏检测，并提供文件多路复用和备份集压缩等特性以优化备份性能和空间使用。此外，文章还讨论了如何通过企业经理(EM)进行物理备份和恢复，以及如何简化和自动化RMAN备份和恢复流程。
You are using the backup scheduler in Enterprise Manager (EM) to schedule a backup of your database.
Which type of script does the backup scheduler generate?
A. SQL script
B. PL/SQL script
C. Operating System (OS) script
D. Enterprise Manager (EM) script
E. Recovery Manager (RMAN) script
Answer: E
Oracle Recovery Manager (RMAN), a command-line and Enterprise Manager-based tool, is the method preferred by Oracle for efficiently backing up and recovering your Oracle database. RMAN is designed to work intimately with the server, providing block-level corruption detection during backup and restore. RMAN optimizes performance and space consumption during backup with file multiplexing and backup set compression, and integrates with leading tape and storage media products.
The Oracle Enterprise Manager physical backup and recovery features are built on the Recovery Manager (RMAN) command-line client. Database Control makes available many of the RMAN features, and provides wizards and automatic strategies to simplify and further automate RMAN-based backup and recovery.
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