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Consider the following relations: Emp(E_id: integer, E_name: string, Age: integer, Salary: real) Works(E_id: integer, Dep_id: integer, affectation: date) Dept(Dep_id: integer, Dep_name: string, budget: real, Manager_id:

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Consider the following relations: Emp(E_id: integer, E_name: string, Age: integer, Salary: real) Works(E_id: integer, Dep_id: integer, affectation: date) Dept(Dep_id: integer, Dep_name: string, budget: real, Manager_id: integer)a. What referential integrity constraints exist between these relations? b. What are the options for enforcing these constraints when a user attempts to delete a Dept tuple

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