Most of the topics covered centers around the concept of using "functional dependency" in analyzing data for information preservation, minimal dedundancy, and for reducing modification anomolies. The context of this discussion is a top-down (analysys) approach to relation designing. Continuing with approach this week, our author(s), using the theory of normal forms and functional dependency, presents a further set of topics related to inferring new functional dependencies from a given data set; notations are discussed including closure, cover, minimal cover, and equivalence. Second, the desirable properties of nonadditive (lossless) joins and preservation of functtional dependencies is discussed.  A general algorithm to test for non additivity of joins among a set of relations is presented. This chapter then closes with a discussion of multiple topics specific to the bottom-up (synthesis) approach to database designs.

Also refer to the article shared, and your own research:

Don't use plagiarized sources. Get Your Custom Essay on
Most of the topics covered centers around the concept of using ‘functional dependency’ in analyzing data for information preservation, minimal dedundancy, and for reducing modification anomolies. The context of this discussion is a top-down (analysys) approac
Just from $10/Page
Order Essay
  • Discuss what is meant by the closure of a set of functional dependencies? Illustrate with and example.
  • Discuss why normal forms alone is insufficient as a condition for a good schema design.
  • Discuss what is the lossless (or nonadditive) join property of a decomposition. Explain why is it important.

300 words

“Place your order now for a similar assignment and have exceptional work written by our team of experts, guaranteeing you A results.”

SUPPORT

support@classmatetutor.com

About us

Contact us

User reviews

Become a freelance writer

FAQ’s

OUR SERVICES

 

Persuasive essays

Expository essays

Compare and contrast Essays

Persuasive essays

Argumentative essays

Narrative essays

Definition essays

Informative essays

MAIN

Place order

Our Affiliate program

Privacy Policy

 

LEGAL

Our privacy policy

Terms and conditions

Our Cookie Policy

Confidentiality policy

 

 

Disclaimer: Writemasters is a professional essay writing service, providing custom assistance for research and reference purposes only. The use of our work must comply with all academic guidelines and integrity standards. Copyright © 2009 - 2024
7904 Dorothy St, Rosemead, CA 91770
Open chat
1
Need help? Chat Now
Scan the code
Hello, welcome to our instant WhatsApp chat. We are online and ready to assist.
How can we help you today?