Modern Database Management
13th Edition
ISBN: 9780134773650
Author: Hoffer
Publisher: PEARSON
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Textbook Question
Chapter 3, Problem 3.35PAE
Based on the EER diagram constructed for Problem and Exercise 3-34, develop a sample definition for each entity type, attribute, and relationship in the diagram.
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Chapter 3 Solutions
Modern Database Management
Ch. 3 - Define each of the following terms: supertype...Ch. 3 - Match the following terms and definitions:...Ch. 3 - Contrast the following terms: supertype; subtype...Ch. 3 - State two conditions that indicate when a database...Ch. 3 - Prob. 3.5RQCh. 3 - Give an example (other than those discussed in the...Ch. 3 - What is the attribute inheritance? Why is it...Ch. 3 - Give an example of each of the following: a...Ch. 3 - What types of business rules are normally captured...Ch. 3 - What is the purpose of a subtype discriminator?
Ch. 3 - Prob. 3.11RQCh. 3 - In what ways is starting a data modeling project...Ch. 3 - Prob. 3.13RQCh. 3 - Prob. 3.14RQCh. 3 - What do you purchase when you acquire a packaged...Ch. 3 - In Figure 3-5b, why must the minimum cardinality...Ch. 3 - When is a member of a supertype always a member of...Ch. 3 - Examine the hierarchy for the university EER...Ch. 3 - Add a subtype discriminator for each of the...Ch. 3 - For simplicity, subtype discriminators were left...Ch. 3 - Refer to the employee EER diagram in Figure 3-2....Ch. 3 - Refer to the EER diagram for patients in Figure...Ch. 3 - Figure 3-13 shows the development Of entity...Ch. 3 - Refer to Problem and Exercise 2-44 in Chapter 2...Ch. 3 - For a library, the entity type HOLDING has four...Ch. 3 - A bank has three types of accounts: checking,...Ch. 3 - Refer to your answer to Problem and Exercise 2-4...Ch. 3 - Refer to your answer to Problem and Exercise 3-24...Ch. 3 - Prob. 3.29PAECh. 3 - Draw an EER diagram for the following situation:...Ch. 3 - Develop an EER model for the following situation,...Ch. 3 - Prob. 3.32PAECh. 3 - Prob. 3.33PAECh. 3 - Prob. 3.34PAECh. 3 - Based on the EER diagram constructed for Problem...Ch. 3 - Prob. 3.36PAECh. 3 - Prob. 3.37PAECh. 3 - Add the following to Figure 3-16: An EMPLOYMENT...
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- Data modelling is most often accomplished through the use of a(an) ________________. a. entity-relationship diagram b. data-flow diagram c. functional decomposition diagram d. activity diagramarrow_forwardData modeling is most often accomplished through the use of a(n) __________________. a. entity-relationship diagram b. data-flow diagram c. functional decomposition diagram d. activity diagramarrow_forwardModify the Er diagram given below and add 5 to 6 more additions to it such as entities attributes relationships etcarrow_forward
- Analyze the given entity relationship diagram and answer the following questions. What is the degree of “has” relationship?arrow_forwardDraw Schema Diagramarrow_forwardScenario – “Generate ERD of Use Case Diagram” Task to do: i. Identify Entities with atleast 10 attributes per Entities.ii. Identify all relationship from the given Scenarioiii. Generate Entity Relationship Diagramarrow_forward
- Creation of Entity Relationship Diagram Draw the entity relationship diagram (ERD) for this information.arrow_forwardDescribe how the relationship (supertype/subtype) of an E-R diagram is transformed into relationsarrow_forwardDraw an enhanced entity relationship diagram using the diagram belowarrow_forward
- Explain the rules and style guidelines for creating entity relationship diagramarrow_forwardHow does an entity-relationship diagram work and what precisely is it?arrow_forwardWhat exactly are entity-relationship diagrams, and how do they come into play? What kind of symbol is utilized to represent a relationship? What is an associative entity, and how does it work? Give an illustration of your point.arrow_forward
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