Problem 1 Answer the following questions 1 What is...

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Enhanced Microsoft Office 2013: Illustrated Fundamentals
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Enhanced Microsoft Office 2013: Illustrated Fundamentals
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CSCI/CMPE 4333 Database Design and Implementation Assignment 1 Instructor: Artem Chebotko Assigned on: August 26, 2013 Due on: See the course webpage Description: State your answers legibly and concisely. Problem 1 . Answer the following questions. 1) What is Relational Model? 2) What are relation, relation instance, and relation schema? 3) What are relational database, database instance, and database schema? 4) What is integrity constraint? Give an example. 5) What are candidate key, primary key, and superkey of a relation? 6) What is a foreign key? 7) What does NULL represent in a relation? 8) Why should NULL values be avoided? 9) Why is it important to distinguish candidate keys and superkeys? What if a superkey designated as a primary key? 10) What integrity constraint enforcement mechanisms are available in an RDBMS? Problem 2 . Answer the following questions.
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Enhanced Microsoft Office 2013: Illustrated Fundamentals
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Enhanced Microsoft Office 2013: Illustrated Fundamentals
Cram/Duffy
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