employee elation with information, Database Management System

employee elation with information, Database Management System

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Consider a database application that deals with an Employee relation with information such as SIN, name, data of birth (DOB), and DID (the ID of the department at which the employee work). Each employee has a supervisor to whom she/he reports. Each employee works in some department. Sub-ordinate refers to the employees working under a supervisor. Draw an E/R diagram to represent this information. Convert this diagram into a relational database schema. For each entity set or relationship in the diagram, determine the key(s).

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