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Technical Discussion :: DBMS

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Describe the three levels of data abstraction?

Answer:

Physical Level - This is the lowest level of data abstraction which describes which describes how the data is to be stored in the database.

Logical level - The level describes the data in the database as well as relations between these database.

View Level- This is the highest level of data abstraction , only some part of actual database is viewed to the user.

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