ER diagrams

P

PhotoGuy

New member
can anyone draw these ER diagrams?

1. Construct an E-R diagram for a university registrar’s office. The office maintains data about each class, including the instructor, enrollment, time and place of class meetings. For each student pair, a grade is recorded
2. Construct an E-R diagram for a car-insurance company that has a set of customers, each of whom owns one or more cars. Each car has associated with it zero to any number of accidents. Also create a relational database for this.
3. Construct an E-R diagram for a hospital with a set of patients and a set of medical doctors. Associate with each patient a log of the various tests and examinations conducted.
 
Why not do your homework yourself? You may actually find it to be useful when doing slightly more advanced stuff at uni that you actually know how to do an ER diagram.

When i was a poor lazy student i skipped over the ER diagram part of my course and then had to learn it all again 3 months later when modelling databases.
 
Lolz, aha.

We call 'em somthing else here.

I do know how to do that, on account of actually having learned how to do it, myself.

So no, I'm not doing someone else's homework so they don't have to study.
 
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