EBK MODERN DATABASE MANAGEMENT,
13th Edition
ISBN: 9780134792279
Author: TOPI
Publisher: YUZU
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Chapter 4, Problem 4.45PAE
For your answers to Problem and Exercise 3-33 from Chapter 3, transform the EER diagrams into a set of relational schemas, diagram the functional dependencies, and convert all the relations to third normal form.
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Transform the diagram to a relational schema that shows referential integrity constraints
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The text states that you can argue that “the only reason for having relations is to store instances of functional dependencies.” Explain, in your own words, what this means
Chapter 4 Solutions
EBK 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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- Normalize Table 1 to a set of Third Normal Form (3NF) relations. Your answer should show all the three stages of normalization (1NF, 2NF and 3NF) by using the Database Design Language format (underline all primary keys, composite keys and use an * to indicate the foreign keys). State the action taken upon the table(s) for each Normal Form. For the INF in this case, only identify the Primary Key and keep the INF result in a single table. Then, split into new table(s) starting from a) 2NF onwards. Also, consider the following assumptions: - One ReservelD can have multiple venues' booking. - One venue can only be booked once for the same ReservelD on the same ReserveDate ReservelD ReserveDate StartTime EndTime VenuelD VenueTag 10:00 13:00 210101-01 3-Jan-21 210101-02 3-Jan-21 Hibiscus Lily VenueSize FeePerHour Purpose |150 15:00 v10 Small Discussion 20:00 20:00 21:00 V22 Medium 260 Forum 210101-02 3-Jan-21 13:00 V20 Petal Medium 260 Meeting 210101-02 3-Jan-21 17:00 V10 Hibiscus Small 150…arrow_forwardTable 4-8 shows a portion of a shipment table for a large manufacturing company. Each shipment (identified by Shipment#) uniquely identifies the shipment Origin, Destination, and Distance. The shipment Origin and Destination pair also uniquely identifies the Distance. Question: a. Develop a diagram that shows the functional dependencies in the SHIPMENT relation. b. In what normal form is SHIPMENT? Why? c. Convert SHIPMENT to third normal form if necessary. Show the resulting table(s) with the sample data presented in SHIPMENT.arrow_forwardFor 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_forward
- a) Consider the following EER diagram. Map it to the relational model. Specify the relational schema in DBDL notation. b) Convert the following relational schema to BCNF (FD1, FD2 and FD3 are functional dependencies. CourseOffering(coId, courseId, semesterId, year, campus, courseName) Primary key (coId) Alternate Key (courseId, semesterId, year, campus) FD1: coId courseId, semesterId,arrow_forwardConsider the relational schema for a library system as given below: Member (mem_no, name, dob) Books (isbn, title, authors, publisher) Borrowed (mem_no, isbn, date) Write the following queries in relational algebra. i. List the members who have not borrowed any books from the library. ii. Name all the books borrowed by a member named 'Ram'. ii. List the book that has been borrowed the most.arrow_forwardHow do you make the relational schemas for these problems? I got all the other information.arrow_forward
- What is the most common method of specifying a primary key in a relational schema description? Group of choice: A. by enclosing the key attributes in parentheses B. by stating the key attributes first in the relation definition C. by writing key attributes in all capital letters D. by italicizing the key attributes E. by underlining the attributes that comprise the primary keyarrow_forwardPLZ help with the following: Translate your ER diagram into a relational schema in the form of SQL DDLs. Choose appropriate data types for each attribute and include primary key and foreign key constraints, Check and Not Null constraints. Normalize the relations to 3NF.arrow_forwardUse the technique of normalization to validate the structure of your relational schema. Demonstrate that each of your relations is in third normal form (3NF) by displaying the functional dependencies between attributes in each relation. Note, if any of your relations are not in 3NF, this may indicate that your ER model is structurally incorrect or that you have introduced errors in the process of deriving relations from your model.arrow_forward
- Answer D and E only ** ERD attached (the second picture) ** Relational model: c) Entity Relationship to Relational Model: To convert the given diagram to a relational model, below are the steps: Create Relations from Diagram: The relations in the model are as below: 1. Subscriber: (SubscriberID, Name, Address, Email, Phone) 2. SubscriptionTypes(TypeCode, Name, Description, DuartionDays) 3. Subscriptions(SubscriptionID, Price, StartDate, EndDate) Solve the relationships by adding referential integration: 1) Subscription will have one Subscriber: Thus add a new foreign key SubscriberID 2) Subscription will have one SubscriptionType, thus add a new foreign key TypeCode. FINAL RELATIONAL MODEL 1. Subscriber: (SubscriberID, Name, Address, Email, Phone) Primary key: SubscriberID Foreign key: NA 2. SubscriptionTypes(TypeCode, Name, Description, DuartionDays) Primary key: TypeCode (Either D or S) Foreign key: NA 3. Subscriptions(SubscriptionID, Price, StartDate, EndDate,…arrow_forwardLab 3: Normalization Assignment: Problem #11 from Chapter #6. (Be sure to note that this is PROBLEM and not REVIEW QUESTION). Normalize a set of data to 1st, 2nd and 3rd normal form by creating relational schemas, dependency diagrams and an Entity Relationship Diagram (crow’s foot notation). For this lab, complete problem #11 in Chapter 6. Be sure to complete each letter (a thru c) for the problem. The ERD for letter cmust be completed with the use of Microsoft Visio. Remember to include headers on all documents you submit to include a brief descriptive title, your name and a date. Question 11: Given the sample records in the CHARTER table shown in Table P6.11, do the following: Write the relational schema and draw the dependency diagram for the table structure. Make sure that you label all dependencies. CHAR_PAX indicates the number of passengers carried. The CHAR_MILES entry is based on round-trip miles, including pickup points. (Hint: Look at the data values to determine the…arrow_forwardPlease written by computer source Part I - Modeling You are building a database for a comic book store customer management system. Given the database specification below, your job is to turn the specification into an ER diagram. Your notation must be consistent with the notation used in our lecture notes. You can use all constructs and notations discussed in our lecture notes and nothing else (i.e.. oven notations used in the textbooks but not in our lectures cannot be used). Your ER diagram should capture all the information and constraints in the specification but, at the same time, be minimal. It means that redundant entities, relationships, attributes and constraints should be avoided. You may use any drawing tool of your choice (for example, Dia, diagrams.net, Lucidchart, etc.) to draw your ER diagram. Hand drawings will not be accepted. Database Specification The database keeps information about comic books, customers, orders, inventory and reviews. First, the database should…arrow_forward
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