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Chapter 1. Introduction

Chapter 1. Introduction

Enterprise applications are defined by their need to collect, transform, and report on vast amounts of information. And, of course, that information has to be kept somewhere. Storing and retrieving data is a multibillion dollar business, evidenced in part by the growth of the database market as well as the emergence of off-site secure data storage and retrieval facilities. Despite all the available technologies for data management, application designers still spend much of their time trying to efficiently move their data to and from storage.

Many ways of persisting data have come and gone over the years, and no concept has had more staying power than the relational database. It turns out that the vast majority of the world's corporate data is now stored in relational databases. They are the starting point for every enterprise application and often have a lifespan that continues long after the application has faded away.


  

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