Database Systems: Design, Implementation, & Management
13th Edition
ISBN: 9781337627900
Author: Carlos Coronel, Steven Morris
Publisher: Cengage Learning
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Expert Solution & Answer
Chapter 2, Problem 2P
Explanation of Solution
Crow’s Foot notation:
In the Crow’s Foot model by the three-pronged crow’s foot to exhibit the “many” side relationship.
- In this notation, “1”is represented as a short line segment.
- “M” is represented as three-pronged crow’s foot.
- The relationship name is represented above the relationship line.
Crow’s Foot ERD (Entity Relationship Diagram):
- The business rule in the problem 1 in the textbook describes about the relationship between AGENT and CUSTOMER and it is written as follows.
- One agent can have many customers, but each customer has only one agent...
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Chapter 2 Solutions
Database Systems: Design, Implementation, & Management
Ch. 2 - Prob. 1RQCh. 2 - What is a business rule, and what is its purpose...Ch. 2 - How do you translate business rules into data...Ch. 2 - Prob. 4RQCh. 2 - Explain how the entity relationship (ER) model...Ch. 2 - Prob. 6RQCh. 2 - Prob. 7RQCh. 2 - Prob. 8RQCh. 2 - Prob. 9RQCh. 2 - Prob. 10RQ
Ch. 2 - What is a relationship, and what three types of...Ch. 2 - Give an example of each of the three types of...Ch. 2 - What is a table, and what role does it play in the...Ch. 2 - Prob. 14RQCh. 2 - Prob. 15RQCh. 2 - Prob. 16RQCh. 2 - Prob. 17RQCh. 2 - Prob. 18RQCh. 2 - Prob. 19RQCh. 2 - Prob. 21RQCh. 2 - Prob. 22RQCh. 2 - Prob. 1PCh. 2 - Prob. 2PCh. 2 - Prob. 3PCh. 2 - Prob. 4PCh. 2 - Prob. 5PCh. 2 - Using Figure P2.6 as your guide, work Problems 68....Ch. 2 - Prob. 7PCh. 2 - Prob. 8PCh. 2 - Typically, a hospital patient receives medications...Ch. 2 - Prob. 10PCh. 2 - Prob. 11PCh. 2 - Prob. 12PCh. 2 - Prob. 13PCh. 2 - Prob. 14PCh. 2 - Prob. 15PCh. 2 - Prob. 16PCh. 2 - Prob. 17P
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Similar questions
- Explain this diagram in terms of proper and improper handoff.arrow_forwardWrite down any four business rules that are represented in the below EntityRelationship Diagram (ERD).arrow_forwardWith the use of appropriate examples in real life, distinguish three (3) differences between Transaction strategy and Relationship strategy.arrow_forward
- Can you identify what each weak entity in this diagramarrow_forwardUse ER Assistant to draw your diagram. Transform the following M-N relationship into an associative entity type and two identifying 1-M relationships.arrow_forwardIf you are reading a flat file, with minimal information regarding business rules and constraints. How can one determine the appropiate relationships between entities? This question refers to entity relationship modeling. Logical ERDs.arrow_forward
- Create a Crow’s Foot ERD to include the following business rules for the “ProdCo company” 1. Each sales representative writes many invoices. 2. Each invoice is written by one sales representative. 3. Each sales representative is assigned to one department. 4. Each department has many sales representatives. 5. Each customer can generate many invoices. 6. Each invoice is generated by one customer.arrow_forwardsolve, + i cannot understand the requirements.arrow_forward1)List all the entities required for requirements given in Figure 1. 2)Draw the complete entity-relationship diagram for requirements given in Figure 1.arrow_forward
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