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Persistence in the Enterprise: A Guide to Persistence Technologies by Kulvir Singh Bhogal, Robert Peterson, Kyle Brown, Geoffrey Hambrick, Roland Barcia

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Chapter 1. A Brief History of Object-Relational Mapping

Imagine that you are an IT architect at a leading retailer that has been in business for over 150 years. From the beginning your company innovated by augmenting their in-store sales with mail-order catalog sales to serve those customers living on the frontier. Later, when telephones became commonplace, they were one of the first retailers to institute call centers to decrease the turnaround time on orders and increase customer satisfaction. In the 1990s, when the World Wide Web became ubiquitous, they were one of the first retailers to develop applications to enable customers to enter orders and check on their status wherever they could connect to the Internet.

Unfortunately, your company’s ...

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