What is the highest normal form r is in

Assignment Help Database Management System
Reference no: EM13191104

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

Linda

Jim

Sweater

12-25-2008

Christmas

Linda

Jim

CD

3-8-2007

Grade Report

Linda

Mary

Game

12-25-2008

Christmas

Linda

Mary

Book

2-20-2006

Birthday

Susan

David

CD

7-20-2009

Birthday

Susan

David

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.

Reference no: EM13191104

Questions Cloud

Describe the research of two ethical approaches : research two ethical approaches: virtue ethics (value) and deontology (principle) and apply these theoretical perspectives to ethical dilemma that leaders and/or managers at ECG (Expert Consulting Group) may encounter when providing consulting ser..
Define information calculate the molar volume at stp : The density of the hydrogen peroxide solution is 1.01 g/mL and the solution contains 3.40% H202 by mass. The vapor pressure of water at 24C is 22 mmHg. Based on this data and information calculate the molar volume at STP.
Mean number of degrees awarded by u.s. department : The U.S. Department of Education reported the following number of bachelor's degrees awarded now what is the annual arithmetic mean number of degrees awarded?
What are the opportunity costs of the decisions : Gourmet coffee houses tend to open in high-rent areas and cater to higher income consumers. Because of the change they created for taste and preferences and the higher income market, the gourmet coffee houses had a win-win in a period of falling w..
What is the highest normal form r is in : What functional dependencies can you conclude from the data above and what is the highest normal form R is in?
Define partial derivatives for a diatomic ideal gas : Obtain expressions for the following partial derivatives for a diatomic ideal gas, assuming that its translational, rotational, and vibrational motions all behave classically.
Where gourmet coffee houses tend to open : Because of the change they created for taste and preferences and the higher income market, the gourmet coffee houses had a win-win in a period of falling wholesale prices and increasing retail prices
Relation schema about teaching classes : Suppose you have a relation schema about teaching classes that has the following attributes: Class, Instructor, Time and Room
How will the firms optimal input choice change : What are the current prices of capital and labor, based on the graph b. Suppose that the price of labor increases, if the firms wishes to continue to produce the current level of output how will the firms optimal input choice change

Reviews

Write a Review

Database Management System Questions & Answers

  What are the candidate keys of r

Compute the closure sets of R - find all non-trivial dependencies and what are the candidate keys of R?

  Write program that models an employee

Write a program that models an employee. An employee has an employee number, a name, an address, and a hire date. A name consists of a first name and a last name.

  Describe the different procedure performed in dbms

Describe the different procedure performed in DBMS for student database in which fields are student id, student name, student class, marks.

  Convert data model to a set of virtual windows

You are to design a prototype for a hospital management system. Design a data model for this system, Convert the data model to a set of virtual windows.

  Explain relation schema and set of functional dependencies

Consider relation schema r(A,B,C,D,E, F) and a set of functional dependencies {A BCD,BCDE,BD,DA}. Calculate canonical cover for set of functional dependencies (show each step of your derivation with an explanation).

  Create an erd and relatioal schema

Create an ERD and relatioal schema in third normal form based upon the following business rules. (Hint: ensure that all attributes are FULLY DETERMINED by the primary key.) Don't forget to place your normalization arrows on your relational schema.

  Explain issues to convert relationship for new cardinality

Using example of vehicles and drivers, explain issues to convert relationship for new cardinality including new relationships and attributes for the tables.

  Mark the words as index entries behavior and favorable

Mark the following words in the document as index entries: behavior (four instances), favorable (five instances), and impression (eight instances).

  Describe the different operations of relational algebra

Describe relationships with the example. Also illustrate degree of relationship for that example. Describe the different operations of relational algebra with suitable example each.

  Write candidate keys and referential integrity constraints

Transform the tables into one or more tables in BCNF. Write the primary keys, candidate keys, and referential integrity constraints.

  Write down advantage in storing metadata in tables

What is meant by a Metadata? How does this term pertain to a database? Write down advantage is there in storing metadata in tables?

  Show the database development processes

Assume you were a newly hired IT Security Manager at a software development company that in the past hasn't paid much attention to security, especially in its database development processes.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd