Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask DBMS Expert


Home >> DBMS

Assignment: Data Management

The problems are based on the Baxter Aviation case scenario.

problem 1: The systems analyst proposes the following two relationships between the Flight and Pilot entities: What problem do you need to answer to decide which of the relationships is correct?

problem 2: A part of the initial ER diagram for the Baxter Aviation database appears as follows:

a) State in words the meaning of this relationship.
b) Why can't this relationship be represented directly in a relational database?
c) Redraw the diagram so that it is compatible with the design of a relational database.

problem 3: Assume that you have been presented with the following relation for the Baxter Aviation database: Charters (Pilot#, Pilot name, Aircraft ID#, #seats, Village, Flight#, Flight date, Flight time, Customer#, Customer name)

a) How many entities are represented by this relation?
b) What is the primary key of this relation?
c) Give a specific ex of one insertion anomaly present in this relation.
d) Give a specific ex of one deletion anomaly present in this relation.
e) Is this relation in first, second, or third normal form? Why?

problem 4: A portion of the Baxter Aviation database is as follows: Aircraft (Aircraft ID #, Make, Model, #seats, total airtime, hours on engine) Village (Village name, Type of runway) Flight (Flight time, Flight date, Aircraft ID#, Flight#, Customer #) Destinations (Flight#, Village name) Customers (Customer name, House number, Phone, Customer #)

a) Identify the primary key for each relation.

b) Identify all foreign keys and the primary keys they reference.

c) List all the constraints that must be verified whenever a row is inserted into the Flight relation. (In other words, what are the specific integrity checks that must be made?) In your list, indicate exactly which attributes are being checked and the specific test(s) being performed on each.

DBMS, Programming

  • Category:- DBMS
  • Reference No.:- M9782

Have any Question? 


Related Questions in DBMS

Database analysis and designimplement the initial database

Database Analysis and Design Implement the initial database design for the Enterprise Resource Planning conceptual model described by the following requirements in your selected RDBMS. You need to create the Entity-Relat ...

Listed the five important software components of a dbms the

Listed the five important software components of a DBMS: the DBMS engine, the data definition, data manipulation, application generation, and data administration subsystems. Which of those are most and least important to ...

Organizations want information organizations need

Organizations want information. Organizations need information. However, information must be in an organized format that supports the creation of business intelligence. Otherwise, according to Rebecca Wettemann, vice pre ...

Lab 2 modifying a database design in visiothis assignment

Lab 2: Modifying a Database Design in Visio This assignment contains two Sections: Visio Diagram and Design Summary. You must submit both sections as separate files in order to complete this assignment. Use "Appendix A: ...

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 ...

Assignmentcreate a simple excel spreadsheet with data to

Assignment Create a simple excel spreadsheet with data to update the database. 1. Create a form (frmUpdateMediaLink) to link the spreadsheet to a table in the database (you can link the spreadsheet manually using the wiz ...

Projectinstructionsfor the purpose of grading the project

Project Instructions: For the purpose of grading the project you are required to perform the following tasks: Instructions 1 Open the start file Day Spa that you recently downloaded then Save the workbook as Lastname_Fir ...

Consider a typical sales invoice that would include the

Consider a typical sales invoice that would include the following information. Design a single table to hold all of the information required to store an invoice including this information. Next, apply normalization to re ...

Ms access database assignment helpdo the easy way i really

MS ACCESS Database assignment help (DO THE EASY WAY I really just need this asap) (I have the database file ready to email to you. I dont think it let me upload the database file here.) Create a simple excel spreadsheet ...

Create a data definition class to model one product sold at

Create a data definition class to model one product sold at a bakery. The product will have a description, cost, and quantity in stock. Instance methods include: accessors for each instance variable, non-validating mutat ...

  • 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