Defining Database Relationships

From a developer's perspective, .NET is a framework. There are marketing aspects to .NET too (which have led to a bit of confusion), but as developers we care about what the framework means and does for us. The .NET Framework is an object-oriented framework that ultimately conceals the underlying operating system from us. (There is even rampant speculation about porting .NET to some other operating system, like Linux.)

One of the many things that have been captured as classes is the notion of a relationship between data entities. This class is the DataRelation class, defined in System.Data. The DataRelation class is provider-agnostic; you use the same DataRelation class for SQL Server 7.0 that you use for IBM's ...

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