Concept explainers
Draw an ERD for the following situation. (State any assumptions you believe you have to make in order to develop a complete diagram.) Also, draw a data model for this situation using the tool you have been told to use in your course: The A. M. Honka School of Business operates international business programs in 10 locations throughout Europe. The school had its first class of 9,000 graduates in 1965. The school keeps track of each graduate's student number, name when a student, country of birth, current country of citizenship, current name, and current address, as well as the name of each major the student completed. (Each student has one or two majors.) To maintain strong ties to its alumni, the school holds various events around the world. Events have a title date, location, and type (e.g., reception, dinner, or seminar). The school needs to keep track of which graduates have attended which events. For an attendance by a graduate at an event, a comment is recorded about information school officials learned from that graduate at that event. The school also keeps in contact with graduates by mail, e-mail, telephone, and fax interactions. As with events, the school records information learned from the graduate from each of these contacts. When a school official knows that he or she will be meeting or talking to a graduate, a report is produced showing the latest information about that graduate and the information learned during the past two years from that graduate from all contacts and events the graduate attended
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Modern Database Management (12th Edition)
- How do you represent one-to-many and many-to-many relationships in a data model?arrow_forwardConvert the Entity Relationship Diagram in to Q1. relational database by using MS Access (Note: Students has to create tables in the MS Access by giving appropriate Primary key and Foreign key relationships) Customer Order OrderDetail OrderID OrderDetaillD CustomerID OrderID (FK) Name Mail CustomerID (FK) OrderDate TotalPrice ProductID (FK) ZipCode Address Telephone Amount Price Product ProductID Name Kind Pricearrow_forwardWhen building a data model, why is it sometimes preferable to not include a certain piece of information?arrow_forward
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- Create an ER model to represent the data used by the library.The library provides books to borrowers. Each book is described by title, edition, and year of publication, and is uniquely identified using the ISBN. Each borrower is described by his or her name and address and is uniquely identified using a borrower number. The library provides one or more copies of each book and each copy is uniquely identified using a copy number, status indicating if the book is available for loan, and the allowable loan period for a given copy. A borrower may loan one or many books, and the date each book is loaned out and is returned is recorded. Loan number uniquely identifies each book loan.arrow_forwardWhat is the primary difference between developing a data model from scratch and using an existing one?arrow_forwardPlease find the question below and help me with the answer?arrow_forward
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