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CHAPTER2

In-Memory Architecture

Back in 2005, the average Oracle database was several terabytes in size; at that time, managing a database of just a few terabytes proved to be an arduous task for the database administrator (DBA). This is already an archaic thought, however, because databases these days are measured in petabytes; managing a database of that size is no longer a big deal for the DBA. Technological advancements have enabled the database to perform more functions than ever before. What was fastest yesterday is not even in the race today. Even the definition of fast has completely changed!

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