Question
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:
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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Master The Art Of Data Storytelling With Visualizations
Authors: Alexander N Donovan
1st Edition
B0CNMD9QRD, 979-8867864248
