A- determine the type of relationships (generally) between: - orderNo : itemNo - date : orderNo B- Find out the functional dependencies FD's of the relation Orders. C- Create a Data Base whose tables are in 2NF.
A- determine the type of relationships (generally) between: - orderNo : itemNo - date : orderNo B- Find out the functional dependencies FD's of the relation Orders. C- Create a Data Base whose tables are in 2NF.
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Question
![THIRD QUESTION :
A company places orders for items. Each order is placed on a given
date, and may include a variety of items in different quantities. The
following table shows a sample of Orders.
Orders ( orderNo , itemNo , itemDescription, date , quantity)
Orders :
orderNo itemNoitemDescription Date quantity
01
6.2.2019 100
6.2.2019
9.3.2019
9.3.2019
9.3.2019
Il
Screw
01
12
Hammer
50
02
13
Pin
10
02
12
Hammer
40
02
II
Screw
80
HINTS: - The primary key of Orders is defined as { orderNo,
itemNo}
- The relation Orders is in 1NF.
A- determine the type of relationships (generally) between:
- orderNo : itemNo
- date : orderNo
B- Find out the functional dependencies FD's of the relation Orders.
C- Create a Data Base whose tables are in 2NF.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F77749852-ba9d-4aef-9c01-bc80c6f5927a%2F069061e6-fc40-4eac-acee-7eae62fbf4e0%2Fki7y5fr_processed.jpeg&w=3840&q=75)
Transcribed Image Text:THIRD QUESTION :
A company places orders for items. Each order is placed on a given
date, and may include a variety of items in different quantities. The
following table shows a sample of Orders.
Orders ( orderNo , itemNo , itemDescription, date , quantity)
Orders :
orderNo itemNoitemDescription Date quantity
01
6.2.2019 100
6.2.2019
9.3.2019
9.3.2019
9.3.2019
Il
Screw
01
12
Hammer
50
02
13
Pin
10
02
12
Hammer
40
02
II
Screw
80
HINTS: - The primary key of Orders is defined as { orderNo,
itemNo}
- The relation Orders is in 1NF.
A- determine the type of relationships (generally) between:
- orderNo : itemNo
- date : orderNo
B- Find out the functional dependencies FD's of the relation Orders.
C- Create a Data Base whose tables are in 2NF.
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