Give a loss less-join decomposition into BCNF of schema R of Exercise 7.2.
Answer to relevant QuestionsGive 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.Given the three goals of relational-database design, is there any reason to design a database schema that is in 2NF, but is in no higher-order normal form?Explain why ambiguity potentially exists with multiple inheritances. Illustrate your explanation with an example.If an object is createdwithout any references to it, howcan that object be deleted?Consider the relational schema shown in Figure below.a. Give a schema definition in SQL: 1999 corresponding to the relational schema, but using references to express foreign-key relationships.b. Write each of the queries in ...
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