EBK MODERN DATABASE MANAGEMENT,
13th Edition
ISBN: 9780134792279
Author: TOPI
Publisher: YUZU
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 2, Problem 2.49PAE
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
comment may be recorded with any feedback the school received from the graduate 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 of comments from that graduate.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
How do you represent one-to-many and many-to-many relationships in a data model?
A college course may have one or more scheduled sections or may not have a scheduled section. Attributes of COURSE include Course ID, Course Name, and Units. Attributes of SECTION include Section Number and Semester ID. Semester ID is composed of two parts: Semester and Year. Section Number is an integer (such as 1 or 2) that distinguishes one section from another for the same course but does not uniquely identify a section. How did you model SECTION? Why did you choose this way versus alternative ways to model SECTION?
One hundred students were asked whether they had taken courses in any of the three
subjects, Mathematics, Computer Science and Information Technology. The results
were given below. 45 had taken Mathematics; 18 had taken Mathematics and Computer
Science; 38 had taken Computer Science; 21 had taken Information Technology; 9 had
taken Mathematics and Information Technology.; 4 had taken Computer Science and
Information Technology and 23 had taken no courses in any of the subjects. Draw a
Venn diagram that will show the results of the survey.
Chapter 2 Solutions
EBK MODERN DATABASE MANAGEMENT,
Ch. 2 - Define each of the following terms: entity type...Ch. 2 - Match the following terms and definitions....Ch. 2 - Contrast the following terms: stored attribute;...Ch. 2 - Prob. 2.4RQCh. 2 - Prob. 2.5RQCh. 2 - Prob. 2.6RQCh. 2 - State six general guidelines for naming data...Ch. 2 - Prob. 2.8RQCh. 2 - Prob. 2.9RQCh. 2 - State three conditions that suggest the designer...
Ch. 2 - List the four types of cardinality constraints,...Ch. 2 - Give an example, Other than those described in...Ch. 2 - What is the degree of a relationship? List the...Ch. 2 - Give an example (Other than those described in...Ch. 2 - Give an example of each of the following, other...Ch. 2 - Give an example of the use of effective (or...Ch. 2 - State a rule that says when to extract an...Ch. 2 - Prob. 2.18RQCh. 2 - In addition to explaining what action is being...Ch. 2 - For the Manages relationship in Figure 2-12a,...Ch. 2 - Explain the distinction between entity type and...Ch. 2 - Why is it recommended that every ternary...Ch. 2 - A cellular operator needs a database to keep track...Ch. 2 - Prob. 2.24PAECh. 2 - Answer the following questions concerning Figure...Ch. 2 - Prob. 2.26PAECh. 2 - You may have been assigned a CASE or a drawing...Ch. 2 - Consider the two E-R diagrams in Figure 2-25 Q,...Ch. 2 - Prob. 2.29PAECh. 2 - Are associative entities also weak entities? Why...Ch. 2 - Because Visio does not explicitly show associative...Ch. 2 - Figure 2-26 shows a grade report that is mailed to...Ch. 2 - Prob. 2.33PAECh. 2 - The Is Married To relationship in Figure 2-12a...Ch. 2 - Figure 2-27 represents a situation of students who...Ch. 2 - Figure 2-28 shows two diagrams (A and B), both of...Ch. 2 - Prob. 2.37PAECh. 2 - Review Figure 2-8LQ and Figure 2-22. Identify any...Ch. 2 - Prob. 2.39PAECh. 2 - Prob. 2.40PAECh. 2 - Prob. 2.41PAECh. 2 - Prob. 2.42PAECh. 2 - Prob. 2.43PAECh. 2 - Prob. 2.44PAECh. 2 - Prob. 2.45PAECh. 2 - Prob. 2.46PAECh. 2 - Prob. 2.47PAECh. 2 - Prob. 2.48PAECh. 2 - Draw an ERD for the following situation. (State...Ch. 2 - Prob. 2.50PAECh. 2 - Prob. 2.51PAECh. 2 - Review your answer to Problem and Exercise 2-49 if...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Similar questions
- Problem List with Expected Results Problem 1 For all departments, display department number and the sum of all salaries for each department. Name the derived column SUM_SALARY. Result WORKDEPT SUM_SALARY A00 B01 C01 D11 D21 E01 E11 E21 128500.00 41250.00 90470.00 222100.00 150920.00 40175.00 104990.00 95310.00arrow_forwardCreate a data model designarrow_forwardSQL Helparrow_forward
- When building a data model, why is it sometimes preferable to not include a certain piece of information?arrow_forwardPLEASE MAKE THE CORRECT ERD AND THEN CONVERT IT INTO RELATIONAL MODEL BY KEEPING ALL RULES OF IT IN MIND A hardware store sells several home workshop products to the public (such as power saws and sanders). Each product has several different manufacturers who manufacture it, and prices are different for products made by different manufacturers. Product has product no, product name, product details while manufacturers are assigned unique manufacturer number, name, address and phone numbers. Each time one or more products are sold to a customer, an invoice is created which lists the date, items purchased and their prices, and then the total purchase and tax amounts. Consider the above scenario you are required to create ERD for the above scenario first then covert the ERD into Relational Model.arrow_forwardConsider the tables given below and write the relational Algebra for the following tasks Table Name: Products ProductID ProductName Unit Price SupplierlD 1 Chais 10 boxes x 20 bags 18 1 Chang 24 - 12 oz bottles 19 1 3. Aniseed Syrup 12 - 550 ml bottles 10 1 4 ChefAnton's Cajun Seasoning 48 - 6 oz jars 22 Table Name: Suppliers SupplierID SupplierName ContactName Address City 1 Exotic Liquid Charlotte 49 Gilbert St. Londona Сооper New Orleans Cajun Shelley Burke P.O. Box 78934 New Delights Orleans Grandma Kelly's Regina Murphy 707 Oxford Rd. Ann Arbor Homestead 4 Tokyo Traders Yoshi Nagase 9-8 Sekimai Tokyo Musashino-shi A. Write the Relational algebra for the following questions. i. Find all the information of products whose price is from 15 to 25 inclusively. ii. Find the lowest price of products for each supplier ID. iii. Find ID, name and address of suppliers whose city is Tokyo. B. Convert the following SQL statements to Relational Algebra expressions: i. Select * From Products…arrow_forward
- How often are the most common types of mistakes made when data modeling?arrow_forwardComputer Science Create a SQL Code for the following ER diagram/Schema. choose any data type you think is appropriate for each of the attributes (int, numeric, varchar, etc.). Make sure that your SQL code includes all the constrains depicted in the schema! User Follows Follows u id follower id u id username u id birthyear User username birthyear Event Participates Participates u id e id e id topic day e id month day Event month topic (a) (b)arrow_forwardWhen should you use classification over regression?arrow_forward
- What is the difference between creating a data model from scratch and using one that has already been created?arrow_forwardWant in detailarrow_forwardThe IAAA is a new technical professional organization that publishes scientific papers through its periodic conferences. You are asked to design the data modeling for this center based on the following requirements: - A conference has an id, a title, a start date, an end date - Each conference is organized by exactly one organization. - An organization has an id, name, and address. The address consists of country, cily, and P. O. Box number. - An organization can organize one or more conference(s). - Each conference can include one or more paper(s). - Each paper belongs to exactly one conference. - A paper has an id, a tle, and a number of pages, and one or more subject(s). - Each paper is written by one or more author(s). - An avthor has an id, a first name, a middle name, a last name, an email, and a phone umber. - Each author can write one or more paper(s). - An author should work to exactly one organization. An organization consists of one or more author(s). Propose an…arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Database System ConceptsComputer ScienceISBN:9780078022159Author:Abraham Silberschatz Professor, Henry F. Korth, S. SudarshanPublisher:McGraw-Hill Education
Starting Out with Python (4th Edition)Computer ScienceISBN:9780134444321Author:Tony GaddisPublisher:PEARSON
Digital Fundamentals (11th Edition)Computer ScienceISBN:9780132737968Author:Thomas L. FloydPublisher:PEARSON
C How to Program (8th Edition)Computer ScienceISBN:9780133976892Author:Paul J. Deitel, Harvey DeitelPublisher:PEARSON
Database Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781337627900Author:Carlos Coronel, Steven MorrisPublisher:Cengage Learning
Programmable Logic ControllersComputer ScienceISBN:9780073373843Author:Frank D. PetruzellaPublisher:McGraw-Hill Education
Database System Concepts
Computer Science
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:McGraw-Hill Education
Starting Out with Python (4th Edition)
Computer Science
ISBN:9780134444321
Author:Tony Gaddis
Publisher:PEARSON
Digital Fundamentals (11th Edition)
Computer Science
ISBN:9780132737968
Author:Thomas L. Floyd
Publisher:PEARSON
C How to Program (8th Edition)
Computer Science
ISBN:9780133976892
Author:Paul J. Deitel, Harvey Deitel
Publisher:PEARSON
Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781337627900
Author:Carlos Coronel, Steven Morris
Publisher:Cengage Learning
Programmable Logic Controllers
Computer Science
ISBN:9780073373843
Author:Frank D. Petruzella
Publisher:McGraw-Hill Education
Enhanced Entity Relationship Model; Author: Data Science Center;https://www.youtube.com/watch?v=ocQUtXPumdQ;License: Standard YouTube License, CC-BY