Consider the following 2 transactions: T1: R(A); R(B); B=A+B; W(B)T2: R(B); R(A); A=A+B; W(A) Change T1 and T2 by adding X lock and S lock to satisfy strict two-phase locking. (Please format your answer in the following way: for a simple read on A with S lock, you can write S(A); R(A); unlock(A))Will the execution of your changed T1 and T2 cause deadlock? If so, please provide a schedule example. You can write the schedule in the table format with columns T1 and T2.

Answer 1: In below , i am adding X lock and S lock.…

Answered: Consider the following 2 transactions:…

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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Consider the following 2 transactions:

T1: R(A); R(B); B=A+B; W(B)

T2: R(B); R(A); A=A+B; W(A)

Change T1 and T2 by adding X lock and S lock to satisfy strict two-phase locking. (Please format your answer in the following way: for a simple read on A with S lock, you can write S(A); R(A); unlock(A))
Will the execution of your changed T1 and T2 cause deadlock? If so, please provide a schedule example. You can write the schedule in the table format with columns T1 and T2.

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