Give a lossless-join, dependency-preserving decomposition into 3NF of schema R of Exercise 7.2.
Answer to relevant QuestionsLet a prime attribute be one that appears in at least one candidate key. Let α and β be sets of attributes such that α → β holds but β → α do not hold. Let A be an attribute that is ...Explain how dangling tuplesmay arise. Explain problems that theymay cause.Why do persistent programming languages allow transient objects? Might it be simpler to use only persistent objects, with unneeded objects deleted at the end of an execution? Explain your answer.Redesign the database of Exercise 9.1 into first normal form and fourth normal form. List any functional or multivalued dependencies that you assume. Also list all referential-integrity constraints that should be present in ...Compare the use of embedded SQL with the use in SQL of functions defined in a general-purpose programming language. Under what circumstances would you use each of these features?
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