Pearson eText for Modern Database Management -- Instant Access (Pearson+)
13th Edition
ISBN: 9780137305940
Author: Jeffrey Hoffer, Ramesh Venkataraman
Publisher: PEARSON+
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Chapter 4, Problem 4.30PAE
Program Plan Intro
(a)
The normal form of given relation and decomposition into 3NF.
Program Plan Intro
(b)
The normal form of given relation and decomposition into 3NF.
Program Plan Intro
(c)
The normal form of given relation and decomposition into 3NF.
Program Plan Intro
(d)
The normal form of given relation and decomposition into 3NF.
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Chapter 4 Solutions
Pearson eText for Modern Database Management -- Instant Access (Pearson+)
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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- Indicate all the functional dependencies and the normal form for each relation. Decomposeyour relations into 3rd normal form relations using the decomposition algorithm you will learnin the class. Make the necessary changes in the relations you already created and populatedarrow_forwardWhat is the connection between the primary key of a relation and the functional relationships that exist between all of its attributes?arrow_forwardIdentify the normal form it is in. Please make sure to provide explanations to support your answer. Convert it to BCNF. 1.GRADES (S#, C#, sem, year, F#, FName, Sname, Cname, grade, crHrs) a) Write down the following functional dependencies: S# --> C# --> F# --> b) Which normal form is the above relation in? c) Convert it to BCNF: 2.TEACHES (C#, sem, year, F#, Fname, Foffice) a) Write down the functional dependency for F#: F# --> b) Which normal form is the above relation in? c) Convert it to BCNF 3. R (a,b,c,d,e,f,g) Given that: d --> a e --> f,g a) Which normal form is the above relation in? b) Convert it to BCNF:arrow_forward
- Q3: Define a relation prereq depth(course id, prereq id, depth) where the attribute depth indicates how many levels of intermediate prerequisites there are between the course and the prerequisite. Direct prerequisites have a depth of 0. Note that a prerequisite course may have multiple depths and thus may appear more than once.arrow_forwardHow does the primary key of a relation relate to the interdependencies of its characteristics from a functional standpoint?arrow_forwardWhy do the functional dependencies among a relation's attributes have to do with the primary key of the relation in the first place?arrow_forward
- 1)A tuple is a named column of a relation. True or alse2)Each attribute in a relation has a distinct name. T/F3)The degree of a relation is the number of attributes it contains. T/F4)A foreign key is the candidate key that is selected to identify tuples. T/Farrow_forwardDescribe three circumstances when a surrogate key for the primary key of a relation should be created.arrow_forwardThe following functional dependencies describe a relation that is in 3NF.Book_ID -> Genre_ID, Genre_TypeGenre_ID -> Genre_Type True or False? Thanks.arrow_forward
- For developing our queries, we will be using the following relational schema: Student(SID, name, username, major) Course(cname, description, department, weight) Offering(OID, cname, year, term, duration) Enrolled(SID, OID, grade) A course relation is the generic description of a course which is offered by a department. The offering relation is the specific instance of a course being taught in a given term, and is the entity which will be associated with the student enrollment. Students are enrolled in these offerings and achieve a mark. Express each of following queries in Relational Algebra: | Write a relational algebra query which will list the cname and description of all the courses which are being offering in the Fall 2018 term. 2 Write a relational algebra query which will list the name of all the students who have earned 60% in both 'COSC2P12' and 'COSC2P13'.arrow_forwardWhen both relations are not physically sorted but both have an index on the attributes that are being merged, should an appropriate hybrid merge-join approach be developed?arrow_forwardQuestion: Consider a relation named as BOOK that contains data about the books in a library. BOOK relation was initially created with the attributes BookID (an id that library assigns), ISBN, CopyNr (used to differentiate copies of the same book), Title, PublYear, Author, and AuthorBornYear. Primary key: BookID, CopyNr and Author Candidate key: ISBN, CopyNr and Author Below you see dependencies of attributes: Dependency 1 (D1): ISBN, Title, PublYear, AuthorBornYear were dependent on BookID, CopyNr, and Author Dependency 2 (D2): Title and PublYear were dependent on BookID, CopyNr Dependency 3 (D3): AuthorBornYear was dependent on Author First determine which normal form (1NF, 2NF, 3NF, or BCNF) the above relation is, and why. Then, if necessary, convert the above relation to the highest normal form (BCNF). Write any assumptions that you make Subject: MYSQLarrow_forward
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