EBK DATABASE CONCEPTS
7th Edition
ISBN: 9780133777840
Author: AUER
Publisher: VST
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Textbook Question
Chapter 2, Problem 2.38E
Apply the normalization process to the Veterinary Office List—Version One relation shown in Figure 1-34 (see page 63) to develop a set of normalized relations, Show the results of each of the steps in the normalization process.
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Table 1 is the Sales table, which is an unnormalized table. The description of the Sales table are SNUM = salesman number, CNUM = customer number, WNUM = warehouse number, SAMOUNT = sale amount, etc.
a.)Write down four functional dependencies (FDs) that are valid in the Sales table
b.)Write down the Sales table's normalization result that is in the 2NF, but not in the 3NF.Explain why the table is not in the 3NF.
Develop recurrence relations for the last 3 columns of table 1. Use the recurrence relation you developed to complete the table for these months: • Month 59 • Month 60 • Month 61 • Month119 • Month 120 • Month 121 Show your calculations and completed table.
Normalize the following given data to 1/2/3 NF. State the relations schema after everynormalization.
Chapter 2 Solutions
EBK DATABASE CONCEPTS
Ch. 2 - Prob. 2.1RQCh. 2 - Define the term entity, and give an example of an...Ch. 2 - Prob. 2.3RQCh. 2 - Prob. 2.4RQCh. 2 - Prob. 2.5RQCh. 2 - Prob. 2.6RQCh. 2 - Prob. 2.7RQCh. 2 - Prob. 2.8RQCh. 2 - Prob. 2.9RQCh. 2 - Define the term unique key and give an example.
Ch. 2 - Prob. 2.11RQCh. 2 - Prob. 2.12RQCh. 2 - Prob. 2.13RQCh. 2 - Describe four uses of a primary key.Ch. 2 - Prob. 2.15RQCh. 2 - Prob. 2.16RQCh. 2 - Prob. 2.17RQCh. 2 - Explain the term foreign key, and give an example.Ch. 2 - Prob. 2.19RQCh. 2 - Prob. 2.20RQCh. 2 - Explain three possible interpretations of a null...Ch. 2 - Give an example of a null value (other than one...Ch. 2 - Prob. 2.23RQCh. 2 - Prob. 2.24RQCh. 2 - Prob. 2.25RQCh. 2 - Prob. 2.26RQCh. 2 - Prob. 2.27RQCh. 2 - Define the term primary key in terms of functional...Ch. 2 - Prob. 2.31RQCh. 2 - Examine the data in the Veterinary Office...Ch. 2 - Prob. 2.33RQCh. 2 - Describe a modification problem that occurs when...Ch. 2 - Prob. 2.35RQCh. 2 - Prob. 2.36RQCh. 2 - Prob. 2.37RQCh. 2 - Apply the normalization process to the Veterinary...Ch. 2 - Prob. 2.39ECh. 2 - Prob. 2.40E
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- NORMALIZATION EXERCISE Based on the given relation schema below, perform normalization up to 3NF. Write your answer in below space ORDER (Order_ID,Date,Cust_ID,Cust_Name,State,City,ItemNO,ItemDescription,ItemPrice,Quantity) 1NF 2NF 3NFarrow_forwardConvert the table above to a relation in first normal form. Illustrate the relation with the sample data in the table.arrow_forwardAssignment III (5%): Design of the conceptual model (ERD) from the given relational database. (Note: students has to give appropriate labels on relationships and type of relationships between the entities) Use the same Assignment- I schema to perform the PL/SQL programs Q1. The management of the organization has decided to increase the salaries of all employees to 15% for this, write a PL/SQL block to accept the employee number and to update the salary of that employee. Display the output based on the existing records of the employees. (2 marks) Q2. having the employee age above 40 years. (2 marks) Create a PL/SQL a cursor program that will increase the employee salary to 25% who are Q3. where place belongs to Ibri, dunk or Yanul (hint: Project (projectID. projectName, place, start Year, end Year, #DepartmentID) (2 marks) Write a PL/SQL procedure to change the name of the project to "AL Dahariyah Projects"arrow_forward
- If you assume that a relation has no duplicate data, how do you know there is always at least one primary key?arrow_forwardDecompose the above relation using the Boyce-code normal form decomposition. What is the key relation for the relation Rarrow_forwardExplain the concept of functional dependencies in the context of normalization.arrow_forward
- Write at least 3 functional dependency from the tablearrow_forwardConvert this table to a relation in first normal form by entering appropriate data in the table. What are the determinants in this relation?arrow_forwardWrite relation algebra for following:Student( Enrno, name, courseId, emailId, cellno)Course(courseId, course_nm, duration)i) Add a column city in student table.ii) Find out list of students who have enrolled in “computer” course.iii) List name of all courses with their duration.iv) List name of all students start with “a”.v) List email Id and cell no of all mechanical engineering students.arrow_forward
- Using relation below y=y+pow(-x,i)/factorial(i) ;arrow_forwardwhich rules apply to desigining table with less redundancy? a) Binary Relationship b) Reflective Relationship c) Weak entity d) Normal formarrow_forwardQ9: You are asked to normalize the following Table into 3rd Normal Form. position salary Hours Worked Staff name No $1500 Tom Daneils Supervisor S0003 Sally Adams Manager S0010 Mary Martin Analyst $1500 Tom Daneils $2250 Robert Chin S0415 Sally Stern S3250 Art Peter S0010 Mary Martin S0415 Sally Stern a. b. C. d. e. Which of the following relations will NOT be part of the solution in the 3nd Normal Form? position Toy staffNo Alien Alien Alien Car Car branch No branch No staffNo Products Table 3500 20 Supervisor 4500 24 Manager 5000 11 Engineer 3000 14 4500 30 Supervisor Analyst 3500 23 Engineer 3000 21 Engine Engine 4500 12 5000 10 Part salary ন HoursWorked branchAddress name branchTelNo Branch Branch No Address B001 B001 B001 B004 8Th road, London, UK 8th road, London, UK 8th road, London, UK 5th road, Leeds, UK Central London, UK Central London, UK Avenue, Manch, UK 5th road, Leeds, UK B002 B002 B003 B004 B003 Avenue, Manch, UK Q10: Based on the following TWO Tables (Products and…arrow_forward
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