I have an assignment due soon but I don't understand one of the questions.
It asks us to answer Exercises 12.10 out of a text book named "Database Systems - A practical approach to design, implementation and management"
The questions are as follows:
12.10 Create an ER model for each of the following descriptions:
(a ) Each company operates four departments, and each department belongs to one company
(b ) Each department in part (a) employs one or more employees, and each employee works for one department
(c ) Each of the employees in part (b ) may or may not have one more dependents, and each dependent belongs to one employee
(d ) Each employee in part (c) may or may not have one or more dependents, and each dependent belongs to one employee
(e ) Represent all the ER models described in (a ), (b ), (c ) and (d ) as a single ER model
Question
Steven Johns
SUBJECT: Database Systems
Hey Neowin.
I have an assignment due soon but I don't understand one of the questions.
It asks us to answer Exercises 12.10 out of a text book named "Database Systems - A practical approach to design, implementation and management"
The questions are as follows:
Unfortunately, I don't understand how to do this.
Would anyone be able to provide any support?
Regards,
Steven Johns
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