Course Solutions Uncategorized (Solved) : 1 30 Pts Consider Following Database Schema Employee Ename Setof Children Address Setof Sk Q28733142 . . . .

(Solved) : 1 30 Pts Consider Following Database Schema Employee Ename Setof Children Address Setof Sk Q28733142 . . . .

 

1) (30 pts) Consider the following database schema: Employee-(ename, setof(Children), Address, setof (Skills)) Children-cl, c2..^ Address - (city, state, zipcode) Skills s1, s2.) Assume that attributes of type setof(Children) and setof(Skills) have attribute names childrenSet and skillsSet. Suppose a database contains a relation emp (Employee) Now answer the following a) b) c) d) Write a query to unnest the emp relation into flat-emp relation. Write a query to nest the relation flat-emp on the attribute for Children. Write a query to nest the relation flat-emp on the attribute for Skills Write a query to nest the relation flat-emp on both the attributes for Children and Skills.

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