Beginning Oracle Database 11g Administration From Novice to Professional

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CHAPTER 6 DATABASE CREATION
Figure 6-9. Step 2: Database Templates
For the purpose of this exercise, choose the General Purpose or Transaction Processing
template. Click the Show Details button and examine the details of the template; in
the screens that follow, you will be given the opportunity to modify some of the settings
listed in the template. Then click Next to go to Step 3: Database Identification.
Step 3: Database Identification
Figure 6-10 shows the screen for Step 3: Database Identification. In this step, you choose
a database name and an instance name. As explained in Chapter 4, the database is the collection
of files on disk, while the instance is the collection of operating system processes
that use the database. A database can be used by multiple instances; such a database is
called a Real Application Clusters (RAC) database. Chapter 4 discusses RAC; more information
about it can be found in the references listed at the end of this chapter. When
creating a non-RAC database, it is conventional to choose the same value—for example,
ORCL—for the database name and instance name. The instances in a RAC database are
typically numbered serially; for example, ORCL1, ORCL2, and so on.