As the following example,(bag {True, False, True, False} )→union(bag {True} ) = bag { True, False}Evaluate (a) and (b)(a) bag { ‘jason’, ‘jason’, ‘jason’} )→assetWhat is the evaluation result of the above? (b) (set{1,2,3,4,5})→exists(x|x>3)What is the evaluation result of the above?

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Answered: As the following example, (bag {True,…

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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As the following example,
(bag {True, False, True, False} )→union(bag {True} ) = bag { True, False}

Evaluate (a) and (b)

(a) bag { ‘jason’, ‘jason’, ‘jason’} )→asset

What is the evaluation result of the above?
(b) (set{1,2,3,4,5})→exists(x|x>3)
What is the evaluation result of the above?

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