Question

What is data abstraction and explain diffrent level of data abstraction

Answer 1

Answer:Data abstraction is the reduction of a particular body of data to a simplified representation of the whole. Abstraction, in general, is the process of taking away or removing characteristics from something in order to reduce it to a set of essential characteristics.

The are three levels of abstraction are as follows: Physical level: The lowest level of abstraction describes how data are stored. Logical level: The next higher level of abstraction, describes what data are stored in database and what relationship among those data.

Explanation:

Answer 2

Answer:

data abstraction representing only The required elements and not the background details.. flwme