It's a Database Administration advanced data modeling question. Given the following business scenario, create a Crow’s Foot ERD using a specialization hierarchy if appropriate. Two-Bit Drilling Company keeps information on employees and their insurance dependents. Each employee has an employee number, name, date of hire, and title. If an employee is an inspector, then the date of certification and the renewal date for that certification should also be recorded in the system. For all employees, the Social Security number and dependent names should be kept. All dependents must be associated with one and only one employee. Some employees will not have dependents, while others will have many dependents.
It's a
Given the following business scenario, create a Crow’s Foot ERD using a specialization hierarchy if appropriate.
Two-Bit Drilling Company keeps information on employees and their insurance dependents.
Each employee has an employee number, name, date of hire, and title. If an employee is an inspector, then the date of certification and the renewal date for that certification should also be recorded in the system. For all employees, the Social Security number and dependent names should be kept. All dependents must be associated with one and only one employee. Some employees will not have dependents, while others will have many dependents.
In the Data Model:
Listing attributes for both Employee and Dependent Entities and its relationship with PK, FK.
Coming up with the specialization hierarchy with the correct pk/fk, attributes and relationship.
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