QUESTION 22 A B XE KE CO с DII Which option above likely means Zero or one; the "1" side is optional. B QUESTION 23 PROFESSOR PK PROF NUM PROF SPECIALTY: PROF RANK PROF LNAME PROF_FNAME PROF_INITIAL PROF_EMAIL SCHOOL PK SCHOOL CODE is dean of ---oth FK1 PROF NUM SCHOOL NAME operates DEPARTMENT PK DEPT_CODE FK1 SCHOOL CODE DEPT NAME Which of the following is true about the diagram: a. Each professor can be the dean of many schools b. A department can belong to many schools c. A professor is not required to be the dean of any school d. A professor is required to be the dean of at least one school
QUESTION 22 A B XE KE CO с DII Which option above likely means Zero or one; the "1" side is optional. B QUESTION 23 PROFESSOR PK PROF NUM PROF SPECIALTY: PROF RANK PROF LNAME PROF_FNAME PROF_INITIAL PROF_EMAIL SCHOOL PK SCHOOL CODE is dean of ---oth FK1 PROF NUM SCHOOL NAME operates DEPARTMENT PK DEPT_CODE FK1 SCHOOL CODE DEPT NAME Which of the following is true about the diagram: a. Each professor can be the dean of many schools b. A department can belong to many schools c. A professor is not required to be the dean of any school d. A professor is required to be the dean of at least one school
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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Transcribed Image Text:QUESTION 22
A
B
C
D
KE
Ol
||
Which option above likely means Zero or one; the "1" side is optional.
B
A
QUESTION 23
PROFESSOR
PK PROF NUM
PROF SPECIALTY
PROF_RANK
PROF_LNAME
PROF FNAME
PROF_INITIAL
PROF_EMAIL
is dean of
SCHOOL
PK SCHOOL CODE
FK1 PROF NUM
PK
FK1
SCHOOL_NAME
operates
DEPARTMENT
DEPT_CODE
SCHOOL CODE
DEPT_NAME
Which of the following is true about the diagram:
O a. Each professor can be the dean of many schools
O b. A department can belong to many schools
O c. A professor is not required to be the dean of any school
d. A professor is required to be the dean of at least one school
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