Using the following hierarchy of granularity for locking answer follows : READ LOCKED S WRITE LOCKED X DR FILE1 FILE2 PAGE PAGE PAGE R11 R11 R22 R22 F112 F112 F221 A- Mark the nodes with intention locks for read or write where necessary. B- Which of the following lock-Requests could be granted (answer with YES or NO ) : 1- Request : write-lock (FILE1) 2- Request : read-lock (FILE1 ) 3- Request : write-lock (F1122 ) 4- Request : write-lock (R111 ) 5- Request : read-lock ( PAGE21 )

Using the following hierarchy of granularity for locking answer follows : READ LOCKED S WRITE LOCKED X DR FILE1 FILE2 PAGE PAGE PAGE R11 R11 R22 R22 F112 F112 F221 A- Mark the nodes with intention locks for read or write where necessary. B- Which of the following lock-Requests could be granted (answer with YES or NO ) : 1- Request : write-lock (FILE1) 2- Request : read-lock (FILE1 ) 3- Request : write-lock (F1122 ) 4- Request : write-lock (R111 ) 5- Request : read-lock ( PAGE21 )

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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