An Oracle database is composed of files. There are several types of files, and it is important that you as the DBA understand the purpose of each file, as well as what it contains. This module will help you do that.

When you have completed this module, you will be able to:

1. Identify the different files used by a database
2. Edit and understand a database initialization file
3. Explain the use and importance of redo logs for instance recovery
4. Understand the relationship between tablespaces and datafiles

When ready, go to the next lesson, and begin.