Question 1research the definition of a minimal cover

Assignment Help Database Management System
Reference no: EM13380285

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: EM13380285

Questions Cloud

1 a process water with a specific heat capacity of 4182 k1 : 1. a process water with a specific heat capacity of 4.182 k.1 kg-i k-1 flows at a rate of 0.050 kg s-i through a heat
Individual magazine articleyou work for a magazine of your : individual magazine articleyou work for a magazine of your choice and have been asked to write a 700 word article in an
1 with reference to basic constructional features contrast : 1. with reference to basic constructional features contrast the methods of compression employed by positive
The period between 1848 - 1871 saw several government : the period between 1848 - 1871 saw several government changes in france. how were western values expressed in the
Question 1research the definition of a minimal cover : question 1research the definition of a minimal cover. explain it in your own words and give an example. question
Suppose you have a relation schema about teaching classes : suppose you have a relation schema about teaching classes that has the following attributes class instructor time and
Consider the following schema of ra b c d with functional : consider the following schema of ra b c d with functional dependenciesa -gt b b-gt c and b-gtd1- compute the closure
Write a java application that calculates and displays the : write a java application that calculates and displays the property tax for n property owners. n should be declared
Information has many facets value confidentiality integrity : information has many facets value confidentiality integrity privacy legality and so on. all information is not the same

Reviews

Write a Review

Database Management System Questions & Answers

  Knowledge and data warehousing

Design a dimensional model for analysing Purchases for Adventure Works Cycles and implement it as cubes using SQL Server Analysis Services. The AdventureWorks OLTP sample database is the data source for you BI analysis.

  Design a database schema

Design a Database schema

  Entity-relationship diagram

Create an entity-relationship diagram and design accompanying table layout using sound relational modeling practices and concepts.

  Implement a database of courses and students for a school

Implement a database of courses and students for a school.

  Prepare the e-r diagram for the movie database

Energy in the home, personal energy use and home energy efficiency and Efficient use of ‘waste' heat and renewable heat sources

  Design relation schemas for the entire database

Design relation schemas for the entire database.

  Prepare the relational schema for database

Prepare the relational schema for database

  Data modeling and normalization

Data Modeling and Normalization

  Use cases perform a requirements analysis for the case study

Use Cases Perform a requirements analysis for the Case Study

  Knowledge and data warehousing

Knowledge and Data Warehousing

  Stack and queue data structure

Identify and explain the differences between a stack and a queue data structure

  Practice on topic of normalization

Practice on topic of Normalization

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