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Data Abstraction

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Short Note: Data Abstraction

Data abstraction:

It can be define as follows.

1. When the DBMS hides certain details of how data is stored and maintained, it provides
What is called as the abstract view of data?

2. This is to simplify user-interaction with the system.

3. Complexity (of data and data structure) is hidden from users through several levels of
Abstraction.

Data abstraction is used for following purposes:

1. To provide abstract view of data.
2. To hide complicate data from user.
3. To simplify user interaction with DBMS.

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