1
$\begingroup$

This architecture contains three layers or levels of the database management system:

  • External level

  • Conceptual level

  • Internal level

Can some one explain to me with a practical real example so that i can understand this?

Before constructing a data model does enterprise's architects consider to make a three schema architecture of DBMS. But I am totally confused with this abstract model.

Improve this question
$\endgroup$

0

Reset to default

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct.

Browse other questions tagged or ask your own question.