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Question 1:
Research the definition of a "minimal cover". Explain it in your own words and give an example.
Question 2:
Consider the following relation R with sample data where names are unique:
MOTHER
CHILD
GIFT
DATE
OCCASION
Linda
Jim
Bike
1-20-2009
Birthday
Sweater
12-25-2008
Christmas
CD
3-8-2007
Grade Report
Mary
Game
Book
2-20-2006
Susan
David
7-20-2009
Shoes
8-30-2009
Back to School
1- What functional dependencies can you conclude from the data above?
2- What is the highest normal form R is in?
3- If R is not in BCNF, then decompose R to become in BCNF and show that all functional dependencies still hold.
Transform the tables into one or more tables in BCNF. Write the primary keys, candidate keys, and referential integrity constraints.
These are normalization procedures suggested by Shome and Cornell. EQ Tools program permits any of these normalization (or scaling) approaches.
Write a program to solve the following problem: A TV set is purchased with a loan of $563 to be paid off with 5 monthly payments of $116. The interest rate is 1 percent per month. Display a table giving the balance on the loan at the end of ea..
Write a join query that for every order placed on September 5, 1998, (use '05-SEP-1998') will list the order number and order date along with the customer number, last name, and first name of the customer who placed the order
In 500 words or less, trace the history of the development of databases beginning with pre-computer days to the present.
First construct a Data Warehouse Bus Matrix to identify the company's business processes and any likely Data Marts and design the star schema for any Data Marts you have identified.
Find the entities from the functional requirements. Entities can come from Nouns in the text, they may also come from forms, reports and legacy code.
Evaluate the success WellCo and PharmaCARE shareholders
Consider a student club or organization in which you are a member. What are the data entities of this enterprise? List and define each entity.
Design a query that will allow the finance department to determine the commissions paid to specific employees of the sales department for the month of December.
Prepare a report - The report should be related to Business communications.
You have been asked to develop a database utilizing only the written problem description given by the client. In reviewing the description.
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