The architecture of the Oracle relational database management system is a unique one. Features such as rollback buffers and Real Application Clusters are part of the innate Oracle architecture and make it possible for the Oracle database to provide a wide range of features not found in any other database.
This chapter provides a brief overview of the architecture and underlying components of the Oracle database, as well as a description of the different “flavors” of the database currently offered by Oracle Corporation: its various editions, versions, and major features. By understanding how Oracle accomplishes its tasks, you’ll be better equipped to understand the rest of the information in this book—the Oracle initialization parameters and data dictionary views, its various language statements, the details of the various Oracle tools and utilities, and the major aspects of tuning and optimization.
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