Chapter 3: Data models - ER model

In this movie, we discuss the basic concepts of the ER model: entity types, relationship types and attribute types.

[@rikopang7134]

The wage of my professor should be given to you!

[@dataminingapps]

Thx, I fully agree ;-)

[@mustafakamal880]

also mine

[@queeniew3296]

also mine lol

[@harshilgupta8084]

Thanks Bart Baesens, this video is very helpful. Keep up the good work.

[@forestsunrise26]

thank you so so much! I've read the book but didn't understand much until I watched you video!

[@30_shrishtiverma97]

omg ,the your notes and examples are amazing 👏😍 love from India Sir:)

[@dataminingapps]

So nice of you

[@poojamodi1889]

Please make video on other chapters of database like transaction management, recovery system, indexing and hashing, storage manager.......etc.

[@Nadin1998]

is name a compost attribute?

[@henryhayes8390]

In the first project, supplier, product example would you not say the product is a weak entity? A PRODNR might be duplicated across several suppliers and would therefor need the SUPPNR included to facilitate unique identification, resulting in a weak entity. You also did not indicate any existence dependence in this example...

[@camaramario]

What is N and M ?

[@alexanderdockx6899]

N,M ∈ ℕ

[@manavdesai980]

you saved me from failing

[@dataminingapps]

Fore more information on Machine Learning, Analytics, Data Science, see www.bluecourses.com

[@user-wc5vn1mv1q]

pdf file

[@gustav901]

Are you watching this because you were told to at Uppsala University?

[@shabanirashidi44]

For me not I don't understand class lectures