Maurice Tutor

(5)

$15/per page/Negotiable

About Maurice Tutor

Levels Tought:
Elementary,Middle School,High School,College,University,PHD

Expertise:
Algebra,Applied Sciences See all
Algebra,Applied Sciences,Biology,Calculus,Chemistry,Economics,English,Essay writing,Geography,Geology,Health & Medical,Physics,Science Hide all
Teaching Since: May 2017
Last Sign in: 306 Weeks Ago
Questions Answered: 66690
Tutorials Posted: 66688

Education

  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

Experience

  • Professor
    Phoniex University
    Oct-2001 - Nov-2016

Category > Algebra Posted 11 Aug 2017 My Price 6.00

measure of goodness

  1. Discuss the attribute semantics as an informal measure of goodness for a relation schema.
  2. Discuss insertion, deletion, and modification anomalies. Why are they considered bad? Illustrate with examples.
  3. Why are many nulls in a relation considered bad?
  4. Discuss the problem of spurious tuples and how we may prevent it.
  5. State the informal guidelines for relation schema design that we discussed. Illustrate how violation of these guidelines may be harmful.
  6. What is a functional dependency? Who specifies the functional dependencies that hold among the attributes of a relation schema?

Answers

(5)
Status NEW Posted 11 Aug 2017 12:08 AM My Price 6.00

Hel-----------lo -----------Sir-----------/Ma-----------dam-----------Tha-----------nk -----------You----------- fo-----------r u-----------sin-----------g o-----------ur -----------web-----------sit-----------e a-----------nd -----------and----------- ac-----------qui-----------sit-----------ion----------- of----------- my----------- po-----------ste-----------d s-----------olu-----------tio-----------n.P-----------lea-----------se -----------pin-----------g m-----------e o-----------n c-----------hat----------- I -----------am -----------onl-----------ine----------- or----------- in-----------box----------- me----------- a -----------mes-----------sag-----------e I----------- wi-----------ll

Not Rated(0)
Relevent Questions