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OCA Oracle Database 11g: Database Administration I: A Real-World Certification Guide by Steve Ries

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Chapter 1. Introducing the Oracle Relational Database System

We truly live in the Information age. Think for a moment about all the data that exists about you in computers around the world:

  • Your name
  • Your birth date and information
  • Your hobbies
  • Purchases you've made
  • The identities of your friends
  • Your place of employment

Whether it's a hospital's record system, your employer's payroll system, the invoicing records of an online store, or your financial accounts, the examples are endless. Next, multiply that amount of data by the number of people in the world. The result is a truly staggering amount of information. How is it possible that all this data can be organized and retrieved? How is it possible that you can search an online bookstore and find exactly ...

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