Draw the ER Diagram for the scenario below. The company database keeps track of company s employee,
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Question:
Draw the ER Diagram for the scenario below.
The company database keeps track of companys employee, department and projects. We store Employees name, ssn address, salary, gender, date of birth and age. An employee is assigned to one department, but may work on several projects which are not necessarily controlled by the same department. A particular employee manages the department. Each department has a unique name, unique number and several locations. The department controls number of projects each of which has a unique name, unique number and a single location. We want to keep track of the dependents of each employee for insurance purpose. We keep each dependents first name, sex, birth date and relationship to employee.
The ER diagrams shouldn't be like tables. Relationshiphs should represented with diamond shapes and entities should be represented with rectangular shapes. And also the key constraints and participation constraints should be represented if exists
Related Book For
Income Tax Fundamentals 2013
ISBN: 9781285586618
31st Edition
Authors: Gerald E. Whittenburg, Martha Altus Buller, Steven L Gill
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