Ask Question, Ask an Expert


Ask DBMS Expert

Home >> DBMS

Your final exam is based on the scenario below. Read the scenario and then answer the problems that follow it.

Metropolitan City Church Management:

Metropolitan City Church Management (MCCM) has hired you as a consultant to modernize the file processing system that stores information about churches, priests, church members, and attendance at church events.

The data that are currently stored in the file processing system are:

Church_Name                            Name of a church
Church_Address                        Address of a church
Church_Phone                          Church’s phone number
Priest_Name                             Name of a priest
Priest_Birthdate                        Priest’s birthday
Title                                       Priest’s title (rank)
Family_Number                         A unique identifier for a family
Family_Name                            Last name of a family that is a member of a church
First_Name_Head_of_Household   First name of a head-of-household
First_Name_Significant_Other      First name of the significant other of a head-of-household
First_Name_Child                       First name of a child
Birthdate_Child                         Birthdate of a child
Event_Date                              Date an event occurs
Event_Name                             Name of an event
Total_Attendance                     Number of people attending an event
Family_Attendnace                    Number of people from one family attending an event

Important note: One of the restrictions that have been placed on your work is that no further attributes can be added. You may not create any arbitrary unique keys that are not already present! Use concatenated keys where needed.

You are given the following facts about the situation:

• A church can have many priests assigned to it.
• A priest may be assigned to more than one church.
• A family belongs to only one church.
• A family has only one head-of-household; a head-of-household may have a significant other (spouse or other life partner). Of course, there may be more one than child in a family.
• An event is something that takes place on a specific date.
• A person can attend many events and (hopefully) an event is attended by many people.
• The church wants to know which families attended which events and how many people from each family were there. For ex, the database should store data indicating that four members of the Smith family attended the Crafts Fair. (It doesn’t matter which four members …)

problem 1: Draw an ER diagram for your database scenario.

The ER diagram should use only three relationships:

  • one to one relationship
  • one to many  relationship
  • many to many relationship

please go through visual paradigm for making ER diagram using those relationships itself.

problem 2: Design a set of 3NF tables for your database scenario.

problem 3: Consider the following query.

“Show me a list of the last names of all the families who attended the Holiday Bizzare on December 12, 2000.”

• Using the relations you created for the church database, prepare a SQL query that will answer the query above.
• Using the relations you created for the church database, prepare the relational algebra that will answer the query above.

problem 4: Consider the following query:

“Show me the name and birthdate of all priests not assigned to a church.”

• Using the relations you created for the church database, prepare a SQL query that will answer the query above.
• Using the relations you created for the church database, prepare the relational algebra that will answer the query above.

Answer the following problems. You may use exs to support your discussion, but those exs must not duplicate those presented in the lessons or in your text books.

problem 5: Uncontrolled concurrent use of a database can lead to serious problems. What are these problems? Why do they occur?

problem 6: Assume that you have been asked to look at the database design being used by an organization. When you see the tables, you realize that they are all in first normal form; none are higher. describe to the organization’s management the three types of problems you would expect to find in these relations.

problem 7: Discuss four major threats to database security. For each threat you identify, state at least one solution to that threat.

problem 8: Discuss the characteristics of an organization for which a data warehouse would be suitable. Aside from huge amounts of money, what resources does an organization need to support a data warehouse or data mart? For what purposes is a database warehouse best used?

DBMS, Programming

  • Category:- DBMS
  • Reference No.:- M94857

Have any Question? 

Related Questions in DBMS

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 ...

Assignment business intelligence and data

Assignment: Business Intelligence and Data Warehouses Businesses today are extremely reliant on large amounts of data for making intelligent business decisions. Likewise, the data warehouses are often structured in a man ...

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 ...

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 ...

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 ...

Question 1use the tables below to answer the following

Question 1: Use the tables below to answer the following questions: customerid customerid firstname lastname city state 10101 John Gray Lynden Washington 10298 Leroy Brown Pinetop Arizona 10299 Elroy Keller Snoqualmie Wa ...

Dfd1 draw a context diagram for the fiat for football

DFD 1. Draw a Context Diagram for the FIAT for Football process. 2. Draw a top level Data Flow Diagram for the FIAT for Football method. 3. Blow up any one non-trivial process into a first level Data Flow Diagram.

Assignmentdeliverablesall files are located in the

Assignment Deliverables All files are located in the subdirectory of the project. The project should function as specified: When you visit the Personnel form page (frmPersonnel.aspx), a record should be saved in the tblU ...

Individual outsourcing risksprepare a 8- to 10-slide

Individual: Outsourcing Risks Prepare a 8- to 10-slide PowerPoint presentation, including speaker notes, that identifies the possible risks to an organization in each of the following outsourcing situations: • The use of ...

At this point you decide to implement a hash structure for

At this point, you decide to implement a Hash structure for the contributor data to prepare for searches. You will read the contributor information from a file provided; it is a comma delimited (CSV) file. As each record ...

  • 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