Database Systems Design, Implementation, and Management

course, Design, before

Anyone studied this course or book before?

or maybe now ? ^_^

et1984

普通老友 (初級)

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2^#

發表於 2012-2-9 02:45 | 顯示全部帖子

hahah....>.<" I guess you are good that's why you said shouldn't be hard

I just started it....not into SQL yet but starting with the basic of PK, FK, 1NF, 2NF, 3NF but too much terms that's messing me up hahahah

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et1984

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3^#

發表於 2012-2-10 11:08 | 顯示全部帖子

still SQL... omg... just wondering what programming language does university teaching now?
rainbow-davie 發表於 2012-2-9 04:02

I think there should be quite a few programming languages hehe

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et1984

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發表於 2012-2-10 11:10 | 顯示全部帖子

Just wondering if I can get some help here.

Between the current address entity and student entity what's the best relationship between them? 1:1 or 1:M?

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et1984

普通老友 (初級)

Rank: 2

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發表於 2012-2-10 17:10 | 顯示全部帖子

depends.

but 1:1 seems ok.
ACC-HE 發表於 2012-2-10 11:17

1:1 seems ok but I mentioned 1:M because what if the students live together in the same address then an address will have one or more students >.<"

actually the part I'm having headache with is the prof is asking us to make the diagram so that students with their pass 10 addresses so if it is 1:M for current address to students then it'll be M:N for past addresses to students. But I don't know what composite entity I should use in between past addresses to students.