Modern Database Management
13th Edition
ISBN: 9780134792293
Author: Hoffer
Publisher: PEARSON
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Chapter 4, Problem 4.16RQ
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List of three Conditions to check wheather a relation that is in the first normal form is also in second normal form.
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List of three Conditions to check wheather a relation that is in the first normal form is also in second normal form.
Chapter 4 Solutions
Modern Database Management
Ch. 4 - Define each of the following terms: determinant...Ch. 4 - Prob. 4.2RQCh. 4 - Prob. 4.3RQCh. 4 - Describe the primary differences between the...Ch. 4 - Summarize six important properties of relations.Ch. 4 - Describe two properties that each candidate key...Ch. 4 - Describe the three types of anomalies that can...Ch. 4 - Demonstrate each of the anomaly types with an...Ch. 4 - Fill in the blanks in each of the following...Ch. 4 - What is a well-structured relation? Why are...
Ch. 4 - Prob. 4.11RQCh. 4 - Describe how the following components of an E-R...Ch. 4 - Prob. 4.13RQCh. 4 - Prob. 4.14RQCh. 4 - Briefly describe four typical problems that often...Ch. 4 - Prob. 4.16RQCh. 4 - Explain how each of the following types of...Ch. 4 - Prob. 4.18RQCh. 4 - Prob. 4.19RQCh. 4 - Prob. 4.20RQCh. 4 - Prob. 4.21RQCh. 4 - What is the relationship between the primary key...Ch. 4 - Prob. 4.23RQCh. 4 - Explain what can be done with primary keys to...Ch. 4 - Prob. 4.25RQCh. 4 - Explain three conditions that suggest a surrogate...Ch. 4 - Prob. 4.27RQCh. 4 - For each of the following E-R diagrams from...Ch. 4 - Prob. 4.29PAECh. 4 - Prob. 4.30PAECh. 4 - For your answers to the following Problems and...Ch. 4 - Figure 4-3212 shows a class list for Millennium...Ch. 4 - Prob. 4.33PAECh. 4 - Prob. 4.34PAECh. 4 - Prob. 4.35PAECh. 4 - Prob. 4.36PAECh. 4 - Prob. 4.37PAECh. 4 - Prob. 4.38PAECh. 4 - Prob. 4.39PAECh. 4 - Transform Figure 2-15a, attribute version, to 3NF...Ch. 4 - The Public Safety office at Millennium College...Ch. 4 - Prob. 4.42PAECh. 4 - Prob. 4.43PAECh. 4 - Prob. 4.44PAECh. 4 - For your answers to Problem and Exercise 3-33 from...Ch. 4 - Prob. 4.46PAECh. 4 - Prob. 4.47PAECh. 4 - Figure 4-38 includes an EER diagram for a...Ch. 4 - Prob. 4.49PAECh. 4 - Prob. 4.50PAECh. 4 - Prob. 4.51PAECh. 4 - Prob. 4.52PAECh. 4 - Figure 4-40 shows an EER diagram for a university...Ch. 4 - Explore the data included in Table 4-9. Assume...Ch. 4 - Prob. 4.55PAECh. 4 - Prob. 4.56PAECh. 4 - Prob. 4.57PAECh. 4 - Prob. 4.58PAE
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Similar questions
- List three conditions that suggest a surrogate key should be created for the primary key of a relation.arrow_forwardHere are three examples of when it makes sense to create a surrogate key in place of the primary key in a relation.arrow_forwardBelow are three situations where a surrogate key could replace the relation's primary key.arrow_forward
- What are the conditions under which an attribute of a relation may have a changeable length?arrow_forwardGiven these potential problems, what general conditions influence when to partition a relation vertically?arrow_forwardThe following questions relate to the following relation STUDENT (StudentNumber, FamilyName, Degree, Major, GPA) (you should assume that a Degree has many Majors, and that a student can take many Majors, but only one Degree. GPA is Grade Point Average) Using this relation… List the relation’s superkey(s) List the relation’s candidate key(s) Explain the Entity integrity constraintarrow_forward
- Explain the process of decomposing a relation to achieve higher normal forms and the potential trade-offs involved.arrow_forwardGiven the relation R(A, B, C, D, E, F), the following functional dependencies exist: B --> C, DD --> F a) What normal form is the relation R in? b) Normalize relation R to 3NF. You only need to show the final relation schemasarrow_forwardIdentify FIVE properties that a relation must have in the relational model.arrow_forward
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