Describe the three levels of data abstraction, DOT NET Programming

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Describe the three levels of data abstraction?

The are three levels of abstraction:

Physical level: The lowest level of abstraction explains how data are stored.

 Logical level: The next higher level of abstraction, explains what data are stored in database and what relationship between those data.

View level: The highest level of abstraction explains only part of entire database.

 


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