Answer to Question #152098 in Programming & Computer Science for Hadden

Question #152098
The level of data abstraction which describes how the data is actually stored in a database system is;
A Conceptual level.
B Physical level.
C File level.
D None or these.
1
Expert's answer
2020-12-29T11:44:47-0500

We know that a database system includes a difficult level of data structure. To secure data, a database developer always obscures the irrelevant details from the users. The hiding process of irrelevant details from users is called data abstraction. We have three levels of data abstraction. The first level is the Physical Level. This level describes how data is stored in a database. The second level is the Logical Level. This level describes what data is stored in the database. The last or third level is View Level. This level describes the user interaction with the database.

Hence, option "\\color{blue}{\\text{(B)}}" is correct.


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