Consider the following instance of relation Sells(book_title, library, price): Sells book_title library price The grand design Noura 20,000 Brief history of time Noura 15,000 The grand design Malik's 18,000 Brief history of time Malik's 16,000 Quantum computers Malik's 25,000 Brief history of time Al Dirasat 21,000 What this query is trying to find? Select book title from sells s1 where EXISTS (select from sells where book title=s1.book title and library != s1.library) Select one: O a Books sold by more than one library Ob Books sold by exactly one library OcBooks sold by one library or more. Od Books not sold by any library

Consider the following instance of relation Sells(book_title, library, price): Sells book_title library price The grand design Noura 20,000 Brief history of time Noura 15,000 The grand design Malik's 18,000 Brief history of time Malik's 16,000 Quantum computers Malik's 25,000 Brief history of time Al Dirasat 21,000 What this query is trying to find? Select book title from sells s1 where EXISTS (select from sells where book title=s1.book title and library != s1.library) Select one: O a Books sold by more than one library Ob Books sold by exactly one library OcBooks sold by one library or more. Od Books not sold by any library

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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Write and test the following min () function that returns the min of up to two negative numbers: double min (doubl x1, float x2 )?
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