Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask DBMS Expert


Home >> DBMS

For each of the following problems, give the revised table definition.  You should support your definitions with the explanation of why you made the changes. Explanation should be specific to current problem, not just a general explanation.

For EACH and EVERY table (including intermediate ones) you SHOULD underline the primary key AND list all the FDs.

problem1)

Given the following table definition and FD constraints.

Shipment (ShipNum, ShipperName, ShipperContact, ShipperFax, PackageNum, PackDepartureDate, PackArrivalDate, PackDestinaltionCity, PackShipCost, InsuranceValue, InsurerCompany, InsurerAddress)

FDs = {ShipNum → ShipperName, ShipperContact, ShipperFax
PackageNum → PackDepartureDate, PackArrivalDate, PackDestinationCity, PackShipCost, InsuranceValue, InsurerCompany InsurerCompany → InsurerAddress }

Notes: A shipper can be shipping more than one package but each package has only one shipper.
a) Based on FDs above, what is the primary key of the table?
b) Is the table definition in 1NF? Why or why not? If not, convert the table to 1NF table(s).
c) Is/are the table(s) in 2NF? Why or why not? If not, convert the table(s) to table(s) that are in 2NF. describe why they are now in 2NF?
d) Are the tables in 3NF? Why or why not? If not, convert table to 3NF. describe why they are now in 3NF?
e) List all of the foreign keys in problem 1d. Identify them by table name and state which table(s) and corresponding attribute(s) they relate to

problem2) NIU trucking wants to keep track of all of its truck and their base cities.  Given the following relation, produce a normalized set of relations which are normalized up through 3rd normal form.

TRUCK (TruckNum, TruckType, TypeDesc, TruckMiles, DatePurchased, TruckSerialNum, BaseCity, BaseState, BasePhone, BaseManagerName, ManagerPhone, BasePhone)

Business rules:
•    A truck is based at a single base.
•    A base can be the base for many trucks.

a) List ALL FDs for the table which hold based upon the descriptions of the constraints above.
b) Is the table definition in 1NF?  Why or why not?  If not, convert the table to 1NF table(s).
c) Is/are the table(s) in 2NF?  Why or why not?  If not, convert the table(s) to table(s) that are in 2NF.  describe why they are now in 2NF? 

d) Are the tables in 3NF?  Why or why not?  If not, convert the table to 3NF.  describe why they are now in 3NF?

e) List all of the foreign keys in problem 2d.  Identify them by the table name and state which table(s) and corresponding attribute(s) they relate to.

problem3) 

Ace Manufacturing constructs products for sale.  Each product is identified by a serial number.  Each product is constructed from many other parts which are purchased from a variety of vendors.  Given the following relation, produce a normalized set of relations which are normalized up through 3rd normal form.  Note: in the following relation the prefix Prod indicates Product, Comp indicates Component and Vend indicates Vendor.

Manufacture(ProdSerialNum, ProdName, ProdType, ProdTypeName, Component(CompSerialNum, CompType, CompName, Vendor(VendCode, VendName, VendAddress, CompPrice)* )*, ProdPrice)

Business Rules:
•    Ace Manufacturing constructs many products.
•    A product is classified as a certain type.
•    A product is made up of components. 
•    Each component can be supplied by many different vendors.
•    A vendor’s components may be found in many different products.
•    Each vendor may charge a different price for the same component.

a) List ALL the FDs for the table that hold based upon the descriptions of the constraints above.
b) Is the table definition in 1NF?  Why or why not?  If not, convert the table to 1NF table(s).
c) Is/are the table(s) in 2NF?  Why or why not?  If not, convert the table(s) to table(s) that are in 2NF.  describe why they are now in 2NF? 
d) Are the tables in 3NF?  Why or why not?  If not, convert the table to 3NF.  describe why they are now in 3NF?
e) List all of the foreign keys in problem 3d.  Identify them by the table name and state which table(s) and corresponding attribute(s) they relate to.

problem

Given the following table definition and constraints:
R (A, B, C, D, E, F, G, H, I, J)

    FD = {A,B,C,D     → E, F, G, H, I J
             B, C, D       → E, F
             A                → G, H, I, J
             E                → F
             H, I            → J }

a) Based on the FDs above, what is the primary key of the table?
b) Is the table definition in 1NF?  Why or why not?  If not, convert the table to 1NF table(s).
c) Is/are the table(s) in 2NF?  Why or why not?  If not, convert the table(s) to table(s) that are in 2NF.  describe why they are now in 2NF? 
d) Are the tables in 3NF?  Why or why not?  If not, convert the table to 3NF.  describe why they are now in 3NF?
e) List all of the foreign keys in problem 4d.  Identify them by the table name and state which table(s) and corresponding attribute(s) they relate to.

DBMS, Programming

  • Category:- DBMS
  • Reference No.:- M9451

Have any Question? 


Related Questions in DBMS

The use of an access database has become very common over

The use of an Access database has become very common over the last 10 years. Access is the preferred desktop database because server databases such as structured query language (SQL) and others are too complex and are be ...

Task - overview of business casealive amp boating aampb is

Task - Overview of business case: Alive & Boating (A&B) is a small start-up company that sells small boats in Wagga. A&B keeps its models in several showrooms across the city. At this stage customers cannot view the avai ...

Make the menageriegis database using petgissqllook at the

Make the menagerieGIS database using petGIS.sql Look at the petGIS.png to see where the pets are. 1. Display the name, astext location, X and Y values of each pet 2. Display the pets with their location displayed in stan ...

Assignmentas the new manager of a convenience store you

Assignment As the new manager of a convenience store, you have noticed issues with the manual method of tracking sales using paper sales tickets and spreadsheets, as well as, shortages on some of the more popular items c ...

Case problem-global site gps - kevin hodge is a production

Case Problem- Global Site GPS - Kevin Hodge is a production assistant at Global Site GPS, a leading manufacturer of GPS devices located in Crestwood, Missouri. One of Kevin's jobs is to monitor output at the company's fi ...

Tasks objectives1 manage client-server connections using

Tasks Objectives: 1. Manage client-server connections using RDBMS Net Services 2. Evaluate requirements and select appropriate parameters to ensure effective storage management in a database system 3. Manage Redo log inf ...

Fundamentals of databases assignment 1 -q1 explain the

Fundamentals of Databases Assignment 1 - Q1. Explain the distinction between total and partial constraints. Q2. Explain the difference between a weak and a strong entity set. Q3. Explain the distinction between disjoint ...

Oracle databaseusing the schema you developed in homework 1

Oracle Database Using the Schema you developed in Homework 1 for your e-Commerce project, design and implement a Virtual Private Database that limits database access. Your design should be based on two of your columns an ...

Career opportunities in your majorknowledge workers

CAREER OPPORTUNITIES IN YOUR MAJOR Knowledge workers throughout the business world are building their own desktop databases (often called end-user databases or knowledge worker databases). To do so, they must understand ...

Lab creating a database designthis assignment contains two

Lab: Creating a Database Design This assignment contains two Sections: Database Design Diagram and Design Summary. You must submit both sections as separate files in order to complete this assignment. Note: If you are us ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro