None Consider the following transaction schedules. For each schedule, drawthe precedence graph and indicate if it is conflict-serializable or not.(a) r1(A); w1(B); 12(B); w2(C); r3(C); w3(A);(b) r1(A); 12(B); r3(B); w3(A); w2(C); 13(D); 13(C); w1(B);

Answered: Image /qna-images/answer/5e250bb3-eab9-47b5-8d67-f81262f3e5c6.jpg

nsider the following transaction schedules. For each schedule, draw e precedence graph and indicate if it is conflict-serializable or not. (a) r1(A); w1(B); 12(B); w2(C); 13(C); w3(A); (b) r1(A); 12(B); r3(B): w3(A); w2(C); r3(D); 13(C); w1(B):

nsider the following transaction schedules. For each schedule, draw e precedence graph and indicate if it is conflict-serializable or not. (a) r1(A); w1(B); 12(B); w2(C); 13(C); w3(A); (b) r1(A); 12(B); r3(B): w3(A); w2(C); r3(D); 13(C); w1(B):

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

Storage Devices

Storage devices can store digital information/data and applications (in the form of audio, video, image, etc.) to process the result of any computational work. They are a kind of computer hardware that stores information and instruction to be processed. A storage unit is a part of a computer system. Every computer has a storage device. The storage devices work as a memory. They are also known as a storage medium, digital storage, or storage media, which temporarily or permanently store information. They are used either internally or externally in the computer system, server, or any computation device to hold the information. Examples include a pen drive, CD, DVD, floppy disk, memory card and so forth.

Question

None

Consider the following transaction schedules. For each schedule, draw
the precedence graph and indicate if it is conflict-serializable or not.
(a) r1(A); w1(B); 12(B); w2(C); r3(C); w3(A);
(b) r1(A); 12(B); r3(B); w3(A); w2(C); 13(D); 13(C); w1(B);

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