Maurice Tutor

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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: 398 Weeks Ago, 3 Days Ago
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  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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  • Professor
    Phoniex University
    Oct-2001 - Nov-2016

Category > Computer Science Posted 23 Sep 2017 My Price 3.00

referential integrity

  1. What is a foreign key constraint? Why are such constraints important? What is referential integrity?
  2. Consider the ER diagram that you designed for the Prescriptions-R-X chain of pharmacies. Dene relations corresponding to the entity sets and relationship sets in your design using SQL.
  3. Write SQL statements to create the corresponding relations to the ER diagram you designed. If your translation cannot capture any constraints in the ER diagram, explain why.

Answers

Maurice Tutor
(5)
Status NEW Posted 23 Sep 2017 12:09 AM My Price 3.00

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