Entity Integrity: Entity Integrity is a mechanism that is used to protect primary keys in the database . Entity Integrity ensures the following properties for primary key: The primary key of one database table row must not match the primary key of any other row present in the table. No component of primary key must be null. Given database tables: Table Name: EMPLOYEE EMP_CODE EMP_TITLE EMP_LNAME EMP_FNAME EMP_INITIAL EMP_DOB STORE_CODE 1 Mr. Williamson John W 21-May-84 3 2 Ms. Ratula Nancy 09-Feb-89 2 3 Ms. Greenboro Lottie R 02-Oct-81 4 4 Mrs. Rumpersfro Jennie S 01-Jun-71 5 5 Mr. Smith Robert L 23-Nov-59 3 6 Mr. Renselear Cary A 25-Dec-85 1 7 Mr. Ogallo Roberto S 31-Jul-82 3 8 Ms. Johnson Elizabeth I 10-Sep-88 1 9 Mr. Eindsmar Jack W 19-Apr-55 2 10 Mrs. Jones Rose R 06-Mar-66 4 11 Mr. Broderick Tom 21-Oct-72 3 12 Mr. Washington Alan Y 08-Sept-74 2 13 Mr. Smith Peter N 25-Aug-64 3 14 Ms. Smith Sherry H 25-May-66 4 15 Mr. Olenko Howard U 24-May-64 5 16 Mr. Archialo Barry V 03-Sep-60 5 17 Ms. Grimaldo Jeanine K 12-Nov-70 4 18 Mr. Rosenburg Andrew D 24-Jan-71 4 19 Mr. Rosten Peter F 03-Oct-68 4 20 Mr. Mckee Robert S 06-Mar-70 1 21 Ms. Baumann Jennifer A 11-Dec-74 3 Table Name: STORE STORE_CODE STORE_NAME STORE_YTD_SALES REGION_CODE EMP_CODE 1 Access Junction 1003455.76 2 8 2 Database Corner 1421987.39 2 12 3 Tuple Charge 986783.22 1 7 4 Attribute Alley 944568.56 2 3 5 Primary Key Point 2930098.45 1 15 Table Name: REGION REGION_CODE REGION_DESCRIPT 1 EAST 2 WEST

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Answer 1

Question

Chapter 3, Problem 2P

Program Plan Intro

Entity Integrity:

Entity Integrity is a mechanism that is used to protect primary keys in the database. Entity Integrity ensures the following properties for primary key:

The primary key of one database table row must not match the primary key of any other row present in the table.

No component of primary key must be null.

Given database tables:

Table Name: EMPLOYEE

EMP_CODE EMP_TITLE EMP_LNAME EMP_FNAME EMP_INITIAL EMP_DOB STORE_CODE

1 Mr. Williamson John W 21-May-84 3

2 Ms. Ratula Nancy 09-Feb-89 2

3 Ms. Greenboro Lottie R 02-Oct-81 4

4 Mrs. Rumpersfro Jennie S 01-Jun-71 5

5 Mr. Smith Robert L 23-Nov-59 3

6 Mr. Renselear Cary A 25-Dec-85 1

7 Mr. Ogallo Roberto S 31-Jul-82 3

8 Ms. Johnson Elizabeth I 10-Sep-88 1

9 Mr. Eindsmar Jack W 19-Apr-55 2

10 Mrs. Jones Rose R 06-Mar-66 4

11 Mr. Broderick Tom 21-Oct-72 3

12 Mr. Washington Alan Y 08-Sept-74 2

13 Mr. Smith Peter N 25-Aug-64 3

14 Ms. Smith Sherry H 25-May-66 4

15 Mr. Olenko Howard U 24-May-64 5

16 Mr. Archialo Barry V 03-Sep-60 5

17 Ms. Grimaldo Jeanine K 12-Nov-70 4

18 Mr. Rosenburg Andrew D 24-Jan-71 4

19 Mr. Rosten Peter F 03-Oct-68 4

20 Mr. Mckee Robert S 06-Mar-70 1

21 Ms. Baumann Jennifer A 11-Dec-74 3

Table Name: STORE

STORE_CODE STORE_NAME STORE_YTD_SALES REGION_CODE EMP_CODE

1 Access Junction 1003455.76 2 8

2 Database Corner 1421987.39 2 12

3 Tuple Charge 986783.22 1 7

4 Attribute Alley 944568.56 2 3

5 Primary Key Point 2930098.45 1 15

Table Name: REGION

REGION_CODE REGION_DESCRIPT

1 EAST

2 WEST

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Answer 2

Question

Chapter 3, Problem 2P

Program Plan Intro

Entity Integrity:

Entity Integrity is a mechanism that is used to protect primary keys in the database. Entity Integrity ensures the following properties for primary key:

The primary key of one database table row must not match the primary key of any other row present in the table.

No component of primary key must be null.

Given database tables:

Table Name: EMPLOYEE

EMP_CODE EMP_TITLE EMP_LNAME EMP_FNAME EMP_INITIAL EMP_DOB STORE_CODE

1 Mr. Williamson John W 21-May-84 3

2 Ms. Ratula Nancy 09-Feb-89 2

3 Ms. Greenboro Lottie R 02-Oct-81 4

4 Mrs. Rumpersfro Jennie S 01-Jun-71 5

5 Mr. Smith Robert L 23-Nov-59 3

6 Mr. Renselear Cary A 25-Dec-85 1

7 Mr. Ogallo Roberto S 31-Jul-82 3

8 Ms. Johnson Elizabeth I 10-Sep-88 1

9 Mr. Eindsmar Jack W 19-Apr-55 2

10 Mrs. Jones Rose R 06-Mar-66 4

11 Mr. Broderick Tom 21-Oct-72 3

12 Mr. Washington Alan Y 08-Sept-74 2

13 Mr. Smith Peter N 25-Aug-64 3

14 Ms. Smith Sherry H 25-May-66 4

15 Mr. Olenko Howard U 24-May-64 5

16 Mr. Archialo Barry V 03-Sep-60 5

17 Ms. Grimaldo Jeanine K 12-Nov-70 4

18 Mr. Rosenburg Andrew D 24-Jan-71 4

19 Mr. Rosten Peter F 03-Oct-68 4

20 Mr. Mckee Robert S 06-Mar-70 1

21 Ms. Baumann Jennifer A 11-Dec-74 3

Table Name: STORE

STORE_CODE STORE_NAME STORE_YTD_SALES REGION_CODE EMP_CODE

1 Access Junction 1003455.76 2 8

2 Database Corner 1421987.39 2 12

3 Tuple Charge 986783.22 1 7

4 Attribute Alley 944568.56 2 3

5 Primary Key Point 2930098.45 1 15

Table Name: REGION

REGION_CODE REGION_DESCRIPT

1 EAST

2 WEST

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Answer 3

Question

Chapter 3, Problem 2P

Program Plan Intro

Entity Integrity:

Entity Integrity is a mechanism that is used to protect primary keys in the database. Entity Integrity ensures the following properties for primary key:

The primary key of one database table row must not match the primary key of any other row present in the table.

No component of primary key must be null.

Given database tables:

Table Name: EMPLOYEE

EMP_CODE EMP_TITLE EMP_LNAME EMP_FNAME EMP_INITIAL EMP_DOB STORE_CODE

1 Mr. Williamson John W 21-May-84 3

2 Ms. Ratula Nancy 09-Feb-89 2

3 Ms. Greenboro Lottie R 02-Oct-81 4

4 Mrs. Rumpersfro Jennie S 01-Jun-71 5

5 Mr. Smith Robert L 23-Nov-59 3

6 Mr. Renselear Cary A 25-Dec-85 1

7 Mr. Ogallo Roberto S 31-Jul-82 3

8 Ms. Johnson Elizabeth I 10-Sep-88 1

9 Mr. Eindsmar Jack W 19-Apr-55 2

10 Mrs. Jones Rose R 06-Mar-66 4

11 Mr. Broderick Tom 21-Oct-72 3

12 Mr. Washington Alan Y 08-Sept-74 2

13 Mr. Smith Peter N 25-Aug-64 3

14 Ms. Smith Sherry H 25-May-66 4

15 Mr. Olenko Howard U 24-May-64 5

16 Mr. Archialo Barry V 03-Sep-60 5

17 Ms. Grimaldo Jeanine K 12-Nov-70 4

18 Mr. Rosenburg Andrew D 24-Jan-71 4

19 Mr. Rosten Peter F 03-Oct-68 4

20 Mr. Mckee Robert S 06-Mar-70 1

21 Ms. Baumann Jennifer A 11-Dec-74 3

Table Name: STORE

STORE_CODE STORE_NAME STORE_YTD_SALES REGION_CODE EMP_CODE

1 Access Junction 1003455.76 2 8

2 Database Corner 1421987.39 2 12

3 Tuple Charge 986783.22 1 7

4 Attribute Alley 944568.56 2 3

5 Primary Key Point 2930098.45 1 15

Table Name: REGION

REGION_CODE REGION_DESCRIPT

1 EAST

2 WEST

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Answer 4

Question

Chapter 3, Problem 2P

Program Plan Intro

Entity Integrity:

Entity Integrity is a mechanism that is used to protect primary keys in the database. Entity Integrity ensures the following properties for primary key:

The primary key of one database table row must not match the primary key of any other row present in the table.

No component of primary key must be null.

Given database tables:

Table Name: EMPLOYEE

EMP_CODE EMP_TITLE EMP_LNAME EMP_FNAME EMP_INITIAL EMP_DOB STORE_CODE

1 Mr. Williamson John W 21-May-84 3

2 Ms. Ratula Nancy 09-Feb-89 2

3 Ms. Greenboro Lottie R 02-Oct-81 4

4 Mrs. Rumpersfro Jennie S 01-Jun-71 5

5 Mr. Smith Robert L 23-Nov-59 3

6 Mr. Renselear Cary A 25-Dec-85 1

7 Mr. Ogallo Roberto S 31-Jul-82 3

8 Ms. Johnson Elizabeth I 10-Sep-88 1

9 Mr. Eindsmar Jack W 19-Apr-55 2

10 Mrs. Jones Rose R 06-Mar-66 4

11 Mr. Broderick Tom 21-Oct-72 3

12 Mr. Washington Alan Y 08-Sept-74 2

13 Mr. Smith Peter N 25-Aug-64 3

14 Ms. Smith Sherry H 25-May-66 4

15 Mr. Olenko Howard U 24-May-64 5

16 Mr. Archialo Barry V 03-Sep-60 5

17 Ms. Grimaldo Jeanine K 12-Nov-70 4

18 Mr. Rosenburg Andrew D 24-Jan-71 4

19 Mr. Rosten Peter F 03-Oct-68 4

20 Mr. Mckee Robert S 06-Mar-70 1

21 Ms. Baumann Jennifer A 11-Dec-74 3

Table Name: STORE

STORE_CODE STORE_NAME STORE_YTD_SALES REGION_CODE EMP_CODE

1 Access Junction 1003455.76 2 8

2 Database Corner 1421987.39 2 12

3 Tuple Charge 986783.22 1 7

4 Attribute Alley 944568.56 2 3

5 Primary Key Point 2930098.45 1 15

Table Name: REGION

REGION_CODE REGION_DESCRIPT

1 EAST

2 WEST

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Answer 5

Chapter 3, Problem 2P

Program Plan Intro

Entity Integrity:

Entity Integrity is a mechanism that is used to protect primary keys in the database. Entity Integrity ensures the following properties for primary key:

The primary key of one database table row must not match the primary key of any other row present in the table.

No component of primary key must be null.

Given database tables:

Table Name: EMPLOYEE

EMP_CODE EMP_TITLE EMP_LNAME EMP_FNAME EMP_INITIAL EMP_DOB STORE_CODE

1 Mr. Williamson John W 21-May-84 3

2 Ms. Ratula Nancy 09-Feb-89 2

3 Ms. Greenboro Lottie R 02-Oct-81 4

4 Mrs. Rumpersfro Jennie S 01-Jun-71 5

5 Mr. Smith Robert L 23-Nov-59 3

6 Mr. Renselear Cary A 25-Dec-85 1

7 Mr. Ogallo Roberto S 31-Jul-82 3

8 Ms. Johnson Elizabeth I 10-Sep-88 1

9 Mr. Eindsmar Jack W 19-Apr-55 2

10 Mrs. Jones Rose R 06-Mar-66 4

11 Mr. Broderick Tom 21-Oct-72 3

12 Mr. Washington Alan Y 08-Sept-74 2

13 Mr. Smith Peter N 25-Aug-64 3

14 Ms. Smith Sherry H 25-May-66 4

15 Mr. Olenko Howard U 24-May-64 5

16 Mr. Archialo Barry V 03-Sep-60 5

17 Ms. Grimaldo Jeanine K 12-Nov-70 4

18 Mr. Rosenburg Andrew D 24-Jan-71 4

19 Mr. Rosten Peter F 03-Oct-68 4

20 Mr. Mckee Robert S 06-Mar-70 1

21 Ms. Baumann Jennifer A 11-Dec-74 3

Table Name: STORE

STORE_CODE STORE_NAME STORE_YTD_SALES REGION_CODE EMP_CODE

1 Access Junction 1003455.76 2 8

2 Database Corner 1421987.39 2 12

3 Tuple Charge 986783.22 1 7

4 Attribute Alley 944568.56 2 3

5 Primary Key Point 2930098.45 1 15

Table Name: REGION

REGION_CODE REGION_DESCRIPT

1 EAST

2 WEST

Answer 6

Chapter 3, Problem 2P

Program Plan Intro

Entity Integrity:

Entity Integrity is a mechanism that is used to protect primary keys in the database. Entity Integrity ensures the following properties for primary key:

The primary key of one database table row must not match the primary key of any other row present in the table.

No component of primary key must be null.

Given database tables:

Table Name: EMPLOYEE

EMP_CODE EMP_TITLE EMP_LNAME EMP_FNAME EMP_INITIAL EMP_DOB STORE_CODE

1 Mr. Williamson John W 21-May-84 3

2 Ms. Ratula Nancy 09-Feb-89 2

3 Ms. Greenboro Lottie R 02-Oct-81 4

4 Mrs. Rumpersfro Jennie S 01-Jun-71 5

5 Mr. Smith Robert L 23-Nov-59 3

6 Mr. Renselear Cary A 25-Dec-85 1

7 Mr. Ogallo Roberto S 31-Jul-82 3

8 Ms. Johnson Elizabeth I 10-Sep-88 1

9 Mr. Eindsmar Jack W 19-Apr-55 2

10 Mrs. Jones Rose R 06-Mar-66 4

11 Mr. Broderick Tom 21-Oct-72 3

12 Mr. Washington Alan Y 08-Sept-74 2

13 Mr. Smith Peter N 25-Aug-64 3

14 Ms. Smith Sherry H 25-May-66 4

15 Mr. Olenko Howard U 24-May-64 5

16 Mr. Archialo Barry V 03-Sep-60 5

17 Ms. Grimaldo Jeanine K 12-Nov-70 4

18 Mr. Rosenburg Andrew D 24-Jan-71 4

19 Mr. Rosten Peter F 03-Oct-68 4

20 Mr. Mckee Robert S 06-Mar-70 1

21 Ms. Baumann Jennifer A 11-Dec-74 3

Table Name: STORE

STORE_CODE STORE_NAME STORE_YTD_SALES REGION_CODE EMP_CODE

1 Access Junction 1003455.76 2 8

2 Database Corner 1421987.39 2 12

3 Tuple Charge 986783.22 1 7

4 Attribute Alley 944568.56 2 3

5 Primary Key Point 2930098.45 1 15

Table Name: REGION

REGION_CODE REGION_DESCRIPT

1 EAST

2 WEST

Answer 7

Chapter 3, Problem 2P

Program Plan Intro

Entity Integrity:

Entity Integrity is a mechanism that is used to protect primary keys in the database. Entity Integrity ensures the following properties for primary key:

The primary key of one database table row must not match the primary key of any other row present in the table.

No component of primary key must be null.

Given database tables:

Table Name: EMPLOYEE

EMP_CODE EMP_TITLE EMP_LNAME EMP_FNAME EMP_INITIAL EMP_DOB STORE_CODE

1 Mr. Williamson John W 21-May-84 3

2 Ms. Ratula Nancy 09-Feb-89 2

3 Ms. Greenboro Lottie R 02-Oct-81 4

4 Mrs. Rumpersfro Jennie S 01-Jun-71 5

5 Mr. Smith Robert L 23-Nov-59 3

6 Mr. Renselear Cary A 25-Dec-85 1

7 Mr. Ogallo Roberto S 31-Jul-82 3

8 Ms. Johnson Elizabeth I 10-Sep-88 1

9 Mr. Eindsmar Jack W 19-Apr-55 2

10 Mrs. Jones Rose R 06-Mar-66 4

11 Mr. Broderick Tom 21-Oct-72 3

12 Mr. Washington Alan Y 08-Sept-74 2

13 Mr. Smith Peter N 25-Aug-64 3

14 Ms. Smith Sherry H 25-May-66 4

15 Mr. Olenko Howard U 24-May-64 5

16 Mr. Archialo Barry V 03-Sep-60 5

17 Ms. Grimaldo Jeanine K 12-Nov-70 4

18 Mr. Rosenburg Andrew D 24-Jan-71 4

19 Mr. Rosten Peter F 03-Oct-68 4

20 Mr. Mckee Robert S 06-Mar-70 1

21 Ms. Baumann Jennifer A 11-Dec-74 3

Table Name: STORE

STORE_CODE STORE_NAME STORE_YTD_SALES REGION_CODE EMP_CODE

1 Access Junction 1003455.76 2 8

2 Database Corner 1421987.39 2 12

3 Tuple Charge 986783.22 1 7

4 Attribute Alley 944568.56 2 3

5 Primary Key Point 2930098.45 1 15

Table Name: REGION

REGION_CODE REGION_DESCRIPT

1 EAST

2 WEST

Answer 8

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Ch. 3 - What is the difference between a database and a...Ch. 3 - Prob. 2RQ Ch. 3 - Prob. 3RQ Ch. 3 - What are the requirements that two relations must...Ch. 3 - Which relational algebra operators can be applied...Ch. 3 - Explain why the data dictionary is sometimes...Ch. 3 - A database user manually notes that The file...Ch. 3 - Prob. 8RQ Ch. 3 - Prob. 9RQ Ch. 3 - Prob. 10RQ

EMP_CODE	EMP_TITLE	EMP_LNAME	EMP_FNAME	EMP_INITIAL	EMP_DOB	STORE_CODE
1	Mr.	Williamson	John	W	21-May-84	3
2	Ms.	Ratula	Nancy		09-Feb-89	2
3	Ms.	Greenboro	Lottie	R	02-Oct-81	4
4	Mrs.	Rumpersfro	Jennie	S	01-Jun-71	5
5	Mr.	Smith	Robert	L	23-Nov-59	3
6	Mr.	Renselear	Cary	A	25-Dec-85	1
7	Mr.	Ogallo	Roberto	S	31-Jul-82	3
8	Ms.	Johnson	Elizabeth	I	10-Sep-88	1
9	Mr.	Eindsmar	Jack	W	19-Apr-55	2
10	Mrs.	Jones	Rose	R	06-Mar-66	4
11	Mr.	Broderick	Tom		21-Oct-72	3
12	Mr.	Washington	Alan	Y	08-Sept-74	2
13	Mr.	Smith	Peter	N	25-Aug-64	3
14	Ms.	Smith	Sherry	H	25-May-66	4
15	Mr.	Olenko	Howard	U	24-May-64	5
16	Mr.	Archialo	Barry	V	03-Sep-60	5
17	Ms.	Grimaldo	Jeanine	K	12-Nov-70	4
18	Mr.	Rosenburg	Andrew	D	24-Jan-71	4
19	Mr.	Rosten	Peter	F	03-Oct-68	4
20	Mr.	Mckee	Robert	S	06-Mar-70	1
21	Ms.	Baumann	Jennifer	A	11-Dec-74	3

STORE_CODE	STORE_NAME	STORE_YTD_SALES	REGION_CODE	EMP_CODE
1	Access Junction	1003455.76	2	8
2	Database Corner	1421987.39	2	12
3	Tuple Charge	986783.22	1	7
4	Attribute Alley	944568.56	2	3
5	Primary Key Point	2930098.45	1	15

Chapter 3 Solutions