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cricket20 [7]
3 years ago
11

Explain the levels of data model​

Computers and Technology
1 answer:
gregori [183]3 years ago
4 0

Answer:

Data modeling occurs at three levels—physical, logical, and conceptual.

  • A physical model is a schema or framework for how data is physically stored in a database.

  • A conceptual model identifies the high-level, user view of data.

  • A logical data model sits between the physical and conceptual levels and allows for the logical representation of data to be separate from its physical storage.

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Answer:

def str_analysis(s):

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       if s > 99:

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       else:

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while s != "":

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Explanation:

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Answer:

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