Solution to Exercise 1
Explore the solution to an exercise on Entity-Relationship diagrams. Learn how to identify strong and weak entities, define primary and weak keys, and understand various relationship types and attributes. Gain practical insight into modeling students, programs, and courses using ER concepts to design efficient database structures.
We'll cover the following...
We'll cover the following...
Solution
The ER diagram derived from our requirements is shown below. The diagram uses some advanced features, including relationships that have attributes and weak entity types.
Explanation
In our design:
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STUDENT is a strong entity, with an identifier,
Student_Id...