1. How many entities are there within the entire database? 2. How many attributes are there for each entity? 3. Give at least four (4) constraint within each of the entities.

Systems Architecture
7th Edition
ISBN:9781305080195
Author:Stephen D. Burd
Publisher:Stephen D. Burd
Chapter3: Data Representation
Section: Chapter Questions
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10:50
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Case Study 1 (CC-105).p. O
CASE STUDY #1 (CC – 105)
Instructions: Based from the given data dictionary below, answer the following questions:
DATABASE NAME: ENROLLMENT
TABLE NAME
ATTRIBUTE NAME
CONTENTS
DATA TYPE
REQUIRED FIELD
PK or FK
STUDENT
STUD_NUM
Student's ID Number
CHAR(13)
VARCHAR(50)
Y
PK
STUD_FNAME
Student's First Name
Y
STUD_LNAME
Student's Last Name
VARCHAR(50)
YEAR(4)
Y
YR ADMIT
Year Admitted
Y
COURSE
COURSE ID
Course ID
CHAR(13)
CHAR(15)
CHAR(40)
CHAR(15)
VARCHAR(60)
CHAR(6)
Y
PK
COURSE_NAME
Course Name in Abbreviated Form
Y
Course Major (if any)
Subject _ID
Subject Name
Subject Units
COURSE MAJOR
N
SUBJECT
SUBJ_ID
Y
PK
SUBJ NAME
Y
SUBJ_UNITS
Y
1. How many entities are there within the entire database?
2. How many attributes are there for each entity?
3. Give at least four (4) constraint within each of the entities.
1 of 1
Transcribed Image Text:10:50 49 .. Case Study 1 (CC-105).p. O CASE STUDY #1 (CC – 105) Instructions: Based from the given data dictionary below, answer the following questions: DATABASE NAME: ENROLLMENT TABLE NAME ATTRIBUTE NAME CONTENTS DATA TYPE REQUIRED FIELD PK or FK STUDENT STUD_NUM Student's ID Number CHAR(13) VARCHAR(50) Y PK STUD_FNAME Student's First Name Y STUD_LNAME Student's Last Name VARCHAR(50) YEAR(4) Y YR ADMIT Year Admitted Y COURSE COURSE ID Course ID CHAR(13) CHAR(15) CHAR(40) CHAR(15) VARCHAR(60) CHAR(6) Y PK COURSE_NAME Course Name in Abbreviated Form Y Course Major (if any) Subject _ID Subject Name Subject Units COURSE MAJOR N SUBJECT SUBJ_ID Y PK SUBJ NAME Y SUBJ_UNITS Y 1. How many entities are there within the entire database? 2. How many attributes are there for each entity? 3. Give at least four (4) constraint within each of the entities. 1 of 1
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