Whats the best way to store the same type of data in the same table fed from multiple sorces? My website table has multiple domains with one being facebook. Buisness rules state that one organisatio
I have an assignment due in my intro database class - and I\'m stumped by one thing.We have been given 5 tables to create for a hotel - Bookings, Clients, OtherCharges, Payments, and Rooms.Within the
Can I improve my design on these 2 diagrams below? If so, how? I am confused by the开发者_JAVA百科 use of association classes in my diagrams. Should I use them?
Q: I want any web sites or books just for training on ERD and normalization. I want a lot of sample, practices, and case studies with recommended answers, 开发者_开发问答to strengthen my skill in dat
I have this relation: 1 Incident Report has N Documents. The Incident Report could have a field like PupilName backed by a PupilID.
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I need to create an entity relationship diagram for a MySQL database. It doesn\'t need to be automatically generated or anything, and I don\'t have foreign keys defined anyway.
I am doing a project in the university and it includes a MySQL database. I have a design for the database in terms of a list of tables and their respective fields.
I\'m still learning all of the powers of OO design and have much more experience in database (in particular, E-R) designs.Each time I approach a problem and attempt to come up with a design following
I\'m modeling an entity relationship diagram and got stuck. I\'m not sure if my considerations are wrong or an ERD can\'t modell what I want:
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