Identify and discuss the serious data redundancy problems exhibited by the file structure shown in Figure P1.9. (The file is meant to be used as a teacher class assignment schedule. One of the many problems with data redundancy is the likely occurrence of data inconsistencies-two different initials have been entered for the teacher named Maria Cordoza.) FIGURE P1.9 THE FILE STRUCTURE FOR PROBLEMS 9-10 BUILDING CODE ROOM_CODE TEACHER_LNAME TEACHER_FNAME TEACHER INITIAL DAYS_TIME KOM 204E Williston Horace G MVVF 8:00-8:50 KOM 123 Cordoza Maria L MVVF 8:00-8:50 LDB 504 Patroski Donald J TTh 1:00-2:15 KOM 34 Hawkins Anne W MVF 10:00-10:50 JKP 2258 Risell James TTh 9:00-10:15 LDB 301 Robertson Jeanette P TTh 9:00-10:15 KOM 204E Cordoza Maria I MVVF 9:00-9:50 LDB 504 Williston Horace G TTh 1:00-2:15 KOM 34 Cordoza Maria L MVVF 11:00-11:50 LDB 504 Patroski Donald J MVVF 2:00-2:50

Identify and discuss the serious data redundancy problems exhibited by the file structure shown in Figure P1.9. (The file is meant to be used as a teacher class assignment schedule. One of the many problems with data redundancy is the likely occurrence of data inconsistencies-two different initials have been entered for the teacher named Maria Cordoza.) FIGURE P1.9 THE FILE STRUCTURE FOR PROBLEMS 9-10 BUILDING CODE ROOM_CODE TEACHER_LNAME TEACHER_FNAME TEACHER INITIAL DAYS_TIME KOM 204E Williston Horace G MVVF 8:00-8:50 KOM 123 Cordoza Maria L MVVF 8:00-8:50 LDB 504 Patroski Donald J TTh 1:00-2:15 KOM 34 Hawkins Anne W MVF 10:00-10:50 JKP 2258 Risell James TTh 9:00-10:15 LDB 301 Robertson Jeanette P TTh 9:00-10:15 KOM 204E Cordoza Maria I MVVF 9:00-9:50 LDB 504 Williston Horace G TTh 1:00-2:15 KOM 34 Cordoza Maria L MVVF 11:00-11:50 LDB 504 Patroski Donald J MVVF 2:00-2:50

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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