Multiple choice

At which level of architecture for a database system is the ANSI/SPARC report proposed?

  1. Level 1

  2. Level 2

  3. Level 3

  4. None of these
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C Correct answer
Explanation

The ANSI/SPARC is a three level architecture. This shows that a data model can be an external model (or view), a conceptual model, or a physical model. This is not the only way to look at data models, but it is an useful way, particularly when comparing models.

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