Question
1. This question is about database logic. Answer all the following: A) Distinguish between logical and physical data independence, and give examples of possible changes
1. This question is about database logic. Answer all the following:
A) Distinguish between logical and physical data independence, and give examples of possible changes they allow.
B) Distinguish between the intension and extension of a database, and give some examples.
C) What is concurrency control and why does a DBMS need a concurrency control facility?
D) Define the term database integrity. How does database integrity differ from database security?
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Database Management For Business Leaders Building And Using Data Solutions That Work For You
Authors: Larry Ruddell
1st Edition
1973630249, 978-1973630241
