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Expert Oracle Database Architecture, Third Edition by Darl Kuhn, Thomas Kyte

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CHAPTER 2

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Architecture Overview

Oracle is designed to be a very portable database—it is available on every platform of relevance, from Windows to UNIX/Linux to mainframes. However, the physical architecture of Oracle looks different on different operating systems. For example, on a UNIX/Linux operating system, you’ll see Oracle implemented as many different operating system processes, virtually a process per major function. On UNIX/Linux, this is the correct implementation, as it works on a multiprocess foundation. On Windows, however, this architecture would be inappropriate and would not work very well (it would be slow and nonscalable). On ...

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