Database Systems: Design, Implementation, & Management
12th Edition
ISBN: 9781305627482
Author: Carlos Coronel, Steven Morris
Publisher: Cengage Learning
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Chapter 2, Problem 13P
Program Plan Intro
Given data:
The Crow’s Foot ERD for the relationship between STUDENT, PROFESSOR, and CLASS is given below. In the given model, the connectivity’s “1” is represented by a short line segment, and “M” is represented by the three-pronged crow’s foot and the relationship name “advises” and “teaches” is written above the relationship line.
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Write the business rules that are reflected in the ERD shown in Figure P2.15. (Note that the ERD reflects some simplifying assumptions. For example, each book is written by only one author. Also, remember that the ERD is always read from the “1” to the “M” side, regardless of the orientation of the ERD components.)
FIGURE P2.15 THE CROW’S FOOT ERD FOR PROBLEM 15
I tried to understand this question. it says:
An employee of JC Consulting created the query shown in Figure 2-48. He wants to list the client name, project ID, and task description for each task assigned to the projects for that client. Will this query be successful? If not, what needs to change in order for this query to work correctly?
Can someone help me with this problem?
Given the following relation vendor order (vendor no, order no, vendor name, qty supplied , price/unit) the second normal form relations are
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. 20RQCh. 2 - Prob. 21RQCh. 2 - Prob. 22RQCh. 2 - Prob. 23RQCh. 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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- i have an ERD question to finish pleasearrow_forwardCreate an Entity Relationship Diagram (ERD) of the normalized version of this table using Visio's crows-foot notation. The ERD should show the PK and FK columns, plus all of the appropriate column attributes (column name, data type/size, null/not null) plus the relationships (with minimum and maximum cardinality) between tables. Requirements: Show the results of the normalization as individual tables Show the FK and PK columns using Visio's notation You must solve the multi-column issue with grades (Hint: This will require a new column) Show the 3-part column definition as noted Show min/max cardinality Tables are attachedarrow_forwarda. What characteristics do tables that conform to the concept of well-informed relations have? b. Describe a dependency diagram and explain its purpose c. Normalize the relation given below OrderNum OrderDate PartNumber PartName UnitPrice PartQuantity SupplierNumber SupplierName SupllierStreet SupplierCitr SupplierSate SupplierZiparrow_forward
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- Using the writing a business rule PDF, write the business rules relating to the provided png relationshipsarrow_forwardI have tried but not able. Please respondAn employee of JC Consulting created the query shown in Figure 2-48. He wants to list the client name, project ID, and task description for each task assigned to the projects for that client. Will this query be successful? If not, what needs to change in order for this query to work correctly? Can someone help me with this problem?.arrow_forwardUsing normalisation, depict the relationship schema of the 2NF tables. State the respective primary keys.arrow_forward
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