Discuss the three layers of the Database architecture with examples of each layer. Refer to the sets below:-A = {Prasanna, Anna, Joanne, Bala, Mohamed, Chuang, Loges}B = {Linda, Anna, Jessy, Emeka, Francisso, Prasanna}C = {Hameed, Anna, Prasanna}D = {Hameed}Find the output for the following questions which is based on the set above,(a) Intersection between A, B and C.(b) Difference between B and C.(c) Union of C and D.(d) Cartesian product of C and D.

Answers 1: Three layers of database architecture: 1- Tier database architecture: The simplest…

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Discuss the three layers of the Database architecture with examples of each layer.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Concept explainers

Concurrency Control

The simultaneous occurrence of two or more operations is called concurrence and the situation is called concurrency. In concurrency, the function of one operation can affect the function of the other and put data integrity at risk. Hence, management for the control of concurrency is required. The management or controlling system in the Database Management System (DBMS) that coordinates concurrent access is called the concurrency control system.

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Discuss the three layers of the Database architecture with examples of each layer.

Refer to the sets below:-
A = {Prasanna, Anna, Joanne, Bala, Mohamed, Chuang, Loges}
B = {Linda, Anna, Jessy, Emeka, Francisso, Prasanna}
C = {Hameed, Anna, Prasanna}
D = {Hameed}
Find the output for the following questions which is based on the set above,
(a) Intersection between A, B and C.
(b) Difference between B and C.
(c) Union of C and D.
(d) Cartesian product of C and D.

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