help1402

It's UWAweek 20 (1st semester, week 11)

help1402

This forum is provided to promote discussion amongst students enrolled in CITS1402 Relational Database Management Systems.

Please consider offering answers and suggestions to help other students! And if you fix a problem by following a suggestion here, it would be great if other interested students could see a short "Great, fixed it!" followup message.

How do I ask a good question?

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UWA week 18 (1st semester, week 9) ↓

Customer and Patient Relationship

9:31am Sun 5th May, ANONYMOUS

How do we define the relationship between customer and patient when they are subclasses of superclass client? I see that the binary relationship type is one-to-many and needing to post a copy of the primary key attribute of parent (Customer) entity in...

UWA week 15 (1st semester, week 6) ↓

Subclasses (both)

4:44pm Tue 9th Apr, ANONYMOUS

Initially we had the superclass Customer and then the two subclasses payee and patient. For example payee is a customer who only pays the bills and patient are customers who receive treatment services. However the project description says payee and p...

Occurences Column in Relationship Dictionary (both)

4:21pm Tue 9th Apr, ANONYMOUS

What are the differences between occurrence and description? Can they be the same?

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