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What This Book Is About
One of the problems with having plenty of development options is that it’s sometimes hard to figure out which one
might be the best choice for your particular needs. Everyone wants as much flexibility as possible (as many choices
as they can possibly have), but they also want things to be very cut and dried—in other words, easy. Oracle presents
developers with almost unlimited choice. No one ever says, “You can’t do that in Oracle.” Rather, they say, “How many
different ways would you like to do that in Oracle?” I hope that this book will help you make the correct choice.
This book is aimed at those people who appreciate the choice but would also like some guidelines and practical
implementation details on Oracle features and functions. For example, Oracle has a really neat feature called parallel
execution. The Oracle documentation tells you how to use this feature and what it does. Oracle documentation does
not, however, tell you when you should use this feature and, perhaps even more important, when you should not use
this feature. It doesn’t always tell you the implementation details of this feature, and if you’re not aware of them, this
can come back to haunt you (I’m not referring to bugs, but the way the feature is supposed to work and what it was
really designed to do).
In this book I strove to not only describe how things work, but also explain when and why you would consider
using a particular feature or implementation. I feel it is important to understand not only the “how” behind things, but
also the “when” and “why” as well as the “when not” and “why not!”