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Physical Database Definition

In addition to defining the logical components of the database, you define the physical characteristics of the data and the environment in which it will be accessed. This is called the physical database definition.

The physical database definition includes the following:

• Segments, areas, and files that will hold the data
• Buffers used in retrieving and storing data
• Journal files used for recovery

The physical database definition is stored in the system dictionary, since it represents all data accessible through the runtime environment.