Abstract

This chapter explores paths of migration from and to relational databases as well as concepts of collaboration between the XML format and the relational format, as in today's enterprise environments, relational databases are the strategic method for data storage. For an enterprise-strength XML, it is crucial to integrate with this technology. The chapter begins with an introduction to the relational data model and its implementation. A relational database basically consists of a set of two-dimensional tables. These tables are organized in unnamed rows and named columns. The design of relational models requires a sequence of normalization steps. Each step splits the complex data structures of the original model into simpler constructs and reduces redundancies and dependencies between data items. This chapter provides a comparison of the features found in SQL with those offered by XML schema. This chapter also explains how XML schemata can be translated into relational schemata, and vice versa.

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