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For the following requests, pack your answers into the zip file Assignment1_AccountName.zip, then handle to the evaluator via email XYZ@fsoft.com.vn Barem: Q1-30%, Q2.1-40%, Q2.2-30% Que

Trang 1

For the following requests, pack your answers into the zip file Assignment1_AccountName.zip, then handle to the evaluator via email (XYZ@fsoft.com.vn)

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

Answer:

Question 2

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

Customer Information

Orde

r Cust Name Addr Quant 1 Part1 Amt1 Quant 2 Part2 Amt2 Quant 3 Part3 Amt3

1001 41 Jones 121 1 st 200 Screw 2.00 300 Nut 2.25 100 Wasshr 0.75

1002 42 Smith 222 2 nd 1 Motor 52.00 5 Brace 44.44

1003 43 Jones 121 1 st 10 Saw 121.00

Please:

1 Normalize that table structure to the first, second and third normalization forms

Answer:

First Normalization Form:

1001 41 Jones 121 1 st Screw 200 2.00

1001 41 Jones 121 1 st Nut 300 2.25

1001 41 Jones 121 1 st Wasshr 100 0.75

1002 42 Smith 222 2 nd Motor 1 52.00

Trang 2

1002 42 Smith 222 2 Brace 5 44.44

1003 43 Jones 121 1 st Saw 10 121.0

0 Second Normalization Form:

Third Normalization Form:

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

Answer:

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