What do you mean by data? How is it different from information, explain by example? 2 Explain
Question:
What do you mean by data? How is it different from information, explain by example?
2 Explain the difference between a DBMS and a database
3 Explain the three schema architecture of a DBMS with the help of diagram. Why do we need mappings between the different schema levels? Also explain the main advantages of DBMS.
4 What are the main responsibilities of DBA?
5 What are the eight major components of database system?
6 Distinguish between the Entity—Relationship model and the Entity—Relationship diagram.
7 Define the term ER diagram. Explain the various types of relationships in a ER diagram.
8 Distinguish between the Entity—Relationship model and the Entity—Relationship diagram.
Principles of Information Systems
ISBN: 978-1133629665
11th edition
Authors: Ralph Stair, George Reynolds