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Looking for answer of this question. Thanks for any help!! Youve been asked to help fix a legacy database where there might be some issues

Looking for answer of this question.

Thanks for any help!!

Youve been asked to help fix a legacy database where there might be some issues causing data integrity problems. For each table below identify the normal form of the data shown and explain how you made your determination. If there are other problems evident in the table that you would need to fix to reach 3NF, note these as well. In the table headings, * denotes primary key and denotes a foreign key in the legacy database. (20 points)

T_Bear

BearID*

BearSubSpecies

BearCommon

BearRange

1

Ursus americanus altifrontalis

Olympic black bear

BC, CA, ID, OR, WA

2

Ursus americanus amblyceps

New Mexico black bear

AZ, CO, NM, TX, UT

3

Ursus americanus americanus

Eastern black bear

Canada, OR, WA, CA, ID, MT, CO, UT, WY, AZ, NM, TX, AR, MO, LA, AL, MSFL, GA, SC, NC, VA, WV, PA, NY, NJ, DE, VT, NH, MA, CT, OK, MI, WI, MN

5

Ursus americanus californiensis

California black bear

CA, OR

6

Ursus americanus carlottae

Haida Gwaii black bear

AK, BC

7

Ursus americanus cinnamomum

Cinnamon bear

ID, MT, OR, UT, WA, WY

10

Ursus americanus emmonsii

Glacier Bear

AK

11

Ursus americanus eremicus

Mexican black bear

N.M., Tx

12

Ursus americanus floridanus

Florida black bear

AL, FL, GA

13

Ursus americanus hamiltoni

Newfoundland black bear

NL

14

Ursus americanus kermodei

Spirit bear

BC

15

Ursus americanus luteolus

Louisiana black bear

LA, MS, TX

17

Ursus americanus machetes

West Mexico black bear

N. Mex.

18

Ursus americanus perniger

Kenai black bear

AK

19

Ursus americanus pugnax

Dall black bear

AK

20

Ursus americanus vancouveri

Vancouver Island black bear

BC

Normal Form:

Explanation:

T_Food

FoodID*

Description

Availability

1

Grubs

5

2

Salmon

3

4

Trout

2

5

Cedar Bark

6

6

Grass

9

8

Roots

7

9

Honey

4

10

Bees

4

Normal Form:

Explanation:

T_Incident

IncidentID*

IBearID

InciType

Date

Location

Region

1

3

2

31-Dec-14

BC

Northwest

2

3

2

23-Feb-15

NC

Southeast

3

3

2

19-Mar-15

PA

Midatlantic

4

6

2

3-Apr-15

AK

Northwest

5

14

4

5-May-15

BC

Northwest

6

3

5

9-May-15

AB

Northwest

7

3

2

11-Jun-15

WY

Mountain

8

1

3

20-Jul-15

WA

Northwest

9

3

2

8-Sep-15

OK

Cerntal

10

10

4

12-Nov-15

AK

Northwest

11

3

2

15-Nov-15

NJ

Midatlantic

Normal Form:

Explanation:

T_Diet

BearID*

FoodID*

Date

EndDate

CaloriesM

CaloriesF

3

5

March

May

15000

13000

3

7

April

June

15000

13000

1

5

April

May

14000

12000

3

2

July

September

15000

13000

2

2

September

September

12000

11000

3

4

May

September

15000

13000

6

2

October

October

16000

12000

1

8

June

July

14000

12000

2

8

May

June

12000

11000

14

5

April

May

15000

12000

14

9

June

August

15000

12000

20

5

March

June

13000

13000

1

9

June

July

14000

12000

Normal Form:

Explanation:

Write a set of relations for the database tables in Problem 2 (note that all the tables shown in Problem 2 are part of the SAME DATABASE and so, in some cases, may refer to the same relations). Write the relations in 3NF (with foreign key constraints), resolving any additional issues made evident in the tables. (40 points)

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