Give an example of a relation schema R` and set F` of functional dependencies such that there are at least three distinct lossless-join decompositions of R` into BCNF.
Answer to relevant QuestionsIn designing a relational database, why might we choose a non-BCNF design?Give an example of a relation schema R and a set of dependencies such that R is in BCNF, but is not in 4NF.Explain how the concept of object identity in the object-oriented model differs from the concept of tuple equality in the relational model.Consider a system that provides persistent objects. Is such a system necessarily a database system? Explain your answer.Consider an employee database with two relations employee (employee-name, street, and city) works (employee-name, company-name, salary) where the primary keys are underlined. Write a query to find companies whose employees ...
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