Assignment1 14130061st hcmuaf edu vn

For the following requests, pack your answers into the zip file Assignment1_AccountName.zip,
then handle to the evaluator via email ()
Barem: Q1-30%, Q2.1-40%, Q2.2-30%

Question 1
Consider the following relations for a database that keeps track of student enrollment in courses
and the books adopted for each course (Primary Key is mark post-fix with #):
CUSTOMER(id#, cd#, version#, name, addr, representative)
T_ORDER(id#, type, cd, name, customer_cd, customer_version, received_date,
request_content)
ESTIMATION(id#, cd, order_cd, total_amount)
Draw a relational schema diagram specifying the foreign keys for this schema.

T_ORDER

id

type

cd

CUSTOME
R
ESTIMATION

id

name customer_cd customer_version
Answer Question 1:

i

d

cd

c
d

version

order_cd

nam
e

add
r

received_date

request_conte

representativ
e

total_amount

Question 2
Given the order table with following initial structure (Primary Key is mark post-fix with #)
Orde
r

1001
1002
1003

Customer Information
Cust Name Addr
41
42
43

Jones
Smith
Jones

121 1st
222 2nd
121 1st

Quant
1
200
1
10

Part1

Amt1

Screw
Motor

Saw

2.00
52.00
121.00

Quant
2
300
5

Part2

Amt2

Nut
Brace

2.25
44.44

Quant
3
100

Please:
a. Normalize that table structure to the first, second and third normalization forms
Answer Question 2a:

Part3

Amt3

Wasshr

0.75


•

First Normalization Form 1NF:
Order

Cust

1001
1001
1001
1002
1002
1003

•

•

41
41
41
42

42
43

Name
Jones
Jones
Jones
Smith
Smith
Jones

Addr
st

121 1
121 1st
121 1st
222 2nd
222 2nd
121 1st

Part

Quant

Amt

Screw
Nut
Wasshr

Motor
Brace
Saw

200
300
100
1
5
10

2.00
2.25
0.75
52.00
44.44
121.0
0

Second Normalization Form 2NF:
Order
1001
1002
1003

Cust
41
42
43

Name
Jones
Smith
Jones

121 1st
222 2nd
121 1st

Addr

Order
1001
1001
1001
1002
1002
1003

Part
Screw
Nut
Wasshr
Motor
Brace
Jones

Quant
200
300

100
1
5
10

Amt
2.00
2.25
0.75
52.00
44.44
121.00

Third Normalization Form 3NF:
Cust
41
42
43

Name
Jones
Smith
Jones

Addr
121 1st
222 2nd
121 1st

Order

1001
1002
1003

Order
1001
1001
1001
1002
1002
1003

Cust
41
42
43

Part
Screw
Nut
Wasshr
Motor
Brace
Jones

Quant
200
300
100
1

5
10

Amt
2.00
2.25
0.75
52.00
44.44
121.00

b. Draw relational schema diagram for the tables defined in the third normalization form above


Answer Question 2b:

DETAIL_ORDER

ORDER

order

order

part

quant

amt

cust

CUSTOMER

cust

name

addr