11.2. Performing Recovery Operations
Once the inevitable database failure occurs, you can perform a relatively quick and painless recovery operation if you have followed the backup guidelines we presented in Chapter 10 and clearly understand the types of failures presented at the beginning of this chapter.
Before we show you how to perform recovery, however, it is important for you to understand how an Oracle instance starts up and what kinds of failures can occur at each startup phase. Understanding the startup phases is important because some types of recovery operations must occur in a particular phase. Once a database is started, the instance will fail under a number of conditions that we will describe in detail.
Next, we will describe how ...