CHAPTER 19Duplication: Cloning the Target Database

We’ve hinted at this chapter’s content since the earliest part of the book: RMAN will help you leverage your backups beyond disaster recovery. We covered using RMAN for corruption checking and cross-platform database conversion in Chapter 14. But one of the most highly leveraged ways to use backups is to make copies of the production database for testing and development purposes. In the database world, we refer to this as cloning.

Database cloning can provide an excellent way to test version upgrades, new application rollouts, and even bug patches. Cloning can also be used to prepare reporting databases that are kept separate from transaction processing databases. In these ways, database backups ...

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