C++ Programming

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C++ Programming

Understand Data Models

Posted: 03 May 2013 08:37 AM PDT

Data models are a collection of conceptual tools for describing data, data relationships, data semantics and data constraints. There are three different groups : (i) Object-Based Logical Models. (ii) Record-Based Logical Models. (iii) Physical Data Models. We'll look at them in more detail now : (i) Object-Based Logical Models : Describe data at the conceptual and view levels. Provide fairly


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