Question: Distinguish between logical and physical data independence, and give examples of possible changes they allow. Distinguish between the intension and extension of a database, and

Distinguish between logical and physical data independence, and give examples of possible changes they allow.

Distinguish between the intension and extension of a database, and give some examples.

What is concurrency control and why does a DBMS need a concurrency control facility?

Define the term “database integrity”. How does database integrity differ from database security?

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1 Logical vs Physical Data Independence Logical Data IndependenceIt refers to the ability to change the logical schema of a database without affecting ... View full answer

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Distinguish between logical and physical data independence.

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