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OCA Oracle Database SQL Certified Expert Exam Guide (Exam 1Z0-047) by Steve O'Hearn

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INTRODUCTION

Welcome to a book that could change your career, and quite possibly change your life—and all for the better. You’re holding in your hands a study guide and roadmap to obtaining the Oracle Database SQL Expert certification. Possession of this book does not guarantee your success. But it increases your odds of success dramatically. You’re going to have to work at it. But you can do it—armed with the information contained in this book, you can achieve what few have accomplished: a certification that declares your expertise in the core language at the heart of all major database systems in use in the world today. You live in the Information Age, and SQL is the master language of all serious information that drives the businesses, governments, ...

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