Data manipulation language, Database Management System

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Question 1 Discuss about second normal form and third normal form

Question 2 Write short note on
1) Data Manipulation Language 2) Data Definition Language

Question 3 Define the following terms
2) Entity 2) Keys

Question 4 Write down the characteristics of different types of storage devices. List (Cache, Main memory, Flash memory, Magnetic-disk storage, Optical storage, Tape storage)

Question 5 Differentiate between 1) Relational Data Model 2) Hierarchical Model

Question 6 What is Normalization? Explain different types of normal form

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