CIW v5 Database Design Specialist 1D0-541 Question # 3 Topic 1 Discussion

CIW v5 Database Design Specialist 1D0-541 Question # 3 Topic 1 Discussion

1D0-541 Exam Topic 1 Question 3 Discussion:
Question #: 3
Topic #: 1

Consider the Information Engineering diagram shown in the exhibit. Building_ID, R_ID, Room_Count and Room_Num are integer numbers, whereas Bldg_Name, Location and Res_Name are all represented by variable-length strings with a maximum of 20 characters.

Which SQL statement best implements the RESIDENT relation shown in this diagram?

1D0-541 Question 3


A.

CREATE TABLE RESIDENT (

R_ID INTEGER NULL PRIMARY KEY,

Room_Num FLOAT,

Res_Name VARCHAR,

Building_ID INTEGER NULL,

FOREIGN KEY Building_ID REFERENCES BUILDING (Building_ID));


B.

CREATE TABLE RESIDENT (

R_ID INTEGER NOT NULL PRIMARY KEY,

Room_Num BINARY,

Res_Name VARCHAR (20),

Building_ID INTEGER NOT NULL,

FOREIGN KEY Building_ID REFERENCES BUILDING (Building_ID));


C.

CREATE TABLE RESIDENT (

R_ID INTEGER NOT NULL PRIMARY KEY,

Room_Num INTEGER,

Res_Name VARCHAR (20),

Building_ID INTEGER NOT NULL);


D.

CREATE TABLE RESIDENT (

R_ID INTEGER NOT NULL PRIMARY KEY,

Room_Num INTEGER,

Res_Name VARCHAR (20),

Building_ID INTEGER NOT NULL,

FOREIGN KEY Building_ID REFERENCES BUILDING (Building_ID));


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