A Guide to SQL
9th Edition
ISBN: 9781111527273
Author: Philip J. Pratt
Publisher: Course Technology Ptr
expand_more
expand_more
format_list_bulleted
Question
Chapter 2, Problem 16RQ
Program Plan Intro
Functional dependencies:
Functional dependency is a term in the relational
- DEPARTMENT_NUM à DEPARTMENT_NAME
- ADVISOR_NUM à ADVISOR_LAST_NAME, ADVISOR_FIRST_NAME, DEPARTMENT_NUM
- COURSE_CODE à DESCRIPTION
- STUDENT_NUM à STUDENT_LAST_NAME, STUDENT_FIRST_NAME, ADVISOR_NUM
- STUDENT_NUM, COURSE_CODE à GRADE
Relations:
The term relation refers to the relationship between the data represented in a row-column format. The relative relations for the given database table is as follows:
- DEPARTMENT (DEPARTMENT_NUM, DEPARTMENT_NAME)
- ADVISOR (ADVISOR_NUM, ADVISOR_LAST_NAME, ADVISOR_FIRST_NAME, DEPARTMENT_NUM)
- COURSE (COURSE_CODE, DESCRIPTION)
- STUDENT (STUDENT_NUM, STUDENT_LAST_NAME, STUDENT_FIRST_NAME, ADVISOR_NUM)
For the database, a new relation is defined as it is mentioned that an advisor can advise any number of students but each student has only one advisor. Therefore, it can be defined as follows:
STUDENT_COURSE (STUDENT_NUM, COURSE_CODE, GRADE)
The above relations are defined for the condition when an advisor can advise any number of students but the student can have only one advisor. Therefore, it clearly represents that the relation between the advisor and the student is many-to-one relation.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Methods (Ch6) - Review
1. (The MyRoot method) Below is a manual implementation of the Math.sqrt() method in Java.
There are two methods, method #1 which calculates the square root for positive integers, and
method #2, which calculates the square root of positive doubles (also works for integers).
public class SquareRoot {
public static void main(String[] args) {
}
// implement a loop of your choice here
// Method that calculates the square root of integer variables
public static double myRoot(int number) {
double root;
root=number/2;
double root old;
do {
root old root;
root (root_old+number/root_old)/2;
} while (Math.abs(root_old-root)>1.8E-6);
return root;
}
// Method that calculates the square root of double variables
public static double myRoot(double number) {
double root;
root number/2;
double root_old;
do {
root old root;
root (root_old+number/root_old)/2;
while (Math.abs (root_old-root)>1.0E-6);
return root;
}
}
Program-it-Yourself: In the main method, create a program that…
I would like to know the main features about the following 3 key concepts:1. Backup Domain Controller (BDC)2. Access Control List (ACL)3. Dynamic Memory
In cell C21, enter a formula to calculate the number of miles you expect to drive each month. Divide the value of number of miles (cell A5 from the Data sheet) by the average MPG for the vehicle multiplied by the price of a gallon of gas (cell A6 from the Data sheet).
Chapter 2 Solutions
A Guide to SQL
Ch. 2 - Prob. 1RQCh. 2 - What is an attribute?Ch. 2 - What is a relationship? What is a one-to-many...Ch. 2 - Prob. 4RQCh. 2 - What is a relation?Ch. 2 - Prob. 6RQCh. 2 - Prob. 7RQCh. 2 - How do you qualify the name of a field, and when...Ch. 2 - Prob. 9RQCh. 2 - What is a primary key? What is the primary key for...
Ch. 2 - Prob. 11RQCh. 2 - Prob. 12RQCh. 2 - Define second normal form. What types of problems...Ch. 2 - Define third normal form. What types of problems...Ch. 2 - Prob. 15RQCh. 2 - Prob. 16RQCh. 2 - List the changes you would need to make to your...Ch. 2 - Prob. 1TDCh. 2 - Prob. 2TDCh. 2 - Prob. 3TDCh. 2 - Prob. 4TDCh. 2 - Prob. 5TDCh. 2 - Prob. 1CATCh. 2 - Identify the functional dependencies in the...Ch. 2 - Prob. 3CATCh. 2 - Determine the functional dependencies that exist...Ch. 2 - Prob. 2SCGCh. 2 - Prob. 3SCG
Knowledge Booster
Similar questions
- Microsoft Excelarrow_forwardIn cell C16, enter a formula to calculate the price of the vehicle minus your available cash (from cell A3 in the Data worksheet). Use absolute references where appropriate—you will be copying this formula across the row what fomula would i use and how do i solve itarrow_forwardWhat types of data visualizations or tools based on data visualizations have you used professionally, whether in a current or past position? What types of data did they involve? What, in your experience, is the value these data views or tools added to your performance or productivity?arrow_forward
- Question: Finding the smallest element and its row index and column index in 2D Array: 1. Write a public Java class min2D. 2. In min2D, write a main method. 3. In the main method, create a 2-D array myArray with 2 rows and 5 columns: {{10, 21, 20, 13, 1}, {2, 6, 7, 8, 14}}. 4. Then, use a nested for loop to find the smallest element and its row index and column index. 5. Print the smallest element and its row index and column index on Java Consolearrow_forward(using R)The iris data set in R gives the measurements in centimeters of the variables sepal length and width andpetal length and width, respectively, for 50 flowers from each of 3 species of iris, setosa, versicolor, andvirginica. Use the iris data set and the t.test function, test if the mean of pepal length of iris flowers isgreater than the mean of sepal length.The iris data set in R gives the measurements in centimeters of the variables sepal length and width andpetal length and width, respectively, for 50 flowers from each of 3 species of iris, setosa, versicolor, andvirginica. Use the iris data set and the t.test function, test if the mean of pepal length of iris flowers isgreater than the mean of sepal length.arrow_forwardRecognizing the Use of Steganography in Forensic Evidence (4e)Digital Forensics, Investigation, and Response, Fourth Edition - Lab 02arrow_forward
- Write a Java Program to manage student information of a university. The Javaprogram does the following steps:a) The program must use single-dimensional arrays to store the studentinformation such as Student ID, Name and Major.b) The program asks the user to provide the number of students.c) The program asks the user to enter the Student IDs for the number of studentsand stores them.d) The program asks the user to enter the corresponding names for the numberof students and stores them.e) The program then asks the user to provide the corresponding major for thestudents and stores them.f) The program then should display the following options:1. ID Search2. Major Enrollment3. Exitg) On selecting option 1, the user can search for a student using Student ID. Theprogram asks the user to enter a Student ID. It then should print thecorresponding student’s details such as Name and Major if the user providedStudent ID number is present in the stored data. If the user’s Student IDnumber does not…arrow_forward(a) Algebraically determine the output state |q3q2q1q0> (which is a 4-qubitvector in 16-dimensional Hilbert space). Show all steps of your calculations. (b) Run a Qiskit code which implements the circuit and append threemeasurement gates to measure the (partial) output state |q2q1q0> (which is a 3-qubit vector in 8-dimensional Hilbert space). this is for quantum soft dev class, you can use stuff like Deutsch Jozsa if u wantarrow_forwardWrite a C++ program that will count from 1 to 10 by 1. The default output should be 1, 2, 3, 4, 5, 6 , 7, 8, 9, 10 There should be only a newline after the last number. Each number except the last should be followed by a comma and a space. To make your program more functional, you should parse command line arguments and change behavior based on their values. Argument Parameter Action -f, --first yes, an integer Change place you start counting -l, --last yes, an integer Change place you end counting -s, --skip optional, an integer, 1 if not specified Change the amount you add to the counter each iteration -h, --help none Print a help message including these instructions. -j, --joke none Tell a number based joke. So, if your program is called counter counter -f 10 --last 4 --skip 2 should produce 10, 8, 6, 4 Please use the last supplied argument. If your code is called counter, counter -f 4 -f 5 -f 6 should count from 6. You should count from first to last inclusively.…arrow_forward
- Write a program that will count from 1 to 10 by 1. The default output should be 1, 2, 3, 4, 5, 6 , 7, 8, 9, 10 There should be only a newline after the last number. Each number except the last should be followed by a comma and a space. To make your program more functional, you should parse command line arguments and change behavior based on their values. Argument Parameter Action -f, --first yes, an integer Change place you start counting -l, --last yes, an integer Change place you end counting -s, --skip optional, an integer, 1 if not specified Change the amount you add to the counter each iteration -h, --help none Print a help message including these instructions. -j, --joke none Tell a number based joke. So, if your program is called counter counter -f 10 --last 4 --skip 2 should produce 10, 8, 6, 4 Please use the last supplied argument. If your code is called counter, counter -f 4 -f 5 -f 6 should count from 6. You should count from first to last inclusively. You…arrow_forwardWas What is the deference betwem full At Adber and Hold?arrow_forwardI need help making this EER diagram in Chen Notation.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
A Guide to SQLComputer ScienceISBN:9781111527273Author:Philip J. PrattPublisher:Course Technology Ptr
COMPREHENSIVE MICROSOFT OFFICE 365 EXCEComputer ScienceISBN:9780357392676Author:FREUND, StevenPublisher:CENGAGE L- Np Ms Office 365/Excel 2016 I NtermedComputer ScienceISBN:9781337508841Author:CareyPublisher:Cengage
C++ for Engineers and ScientistsComputer ScienceISBN:9781133187844Author:Bronson, Gary J.Publisher:Course Technology Ptr
A Guide to SQL
Computer Science
ISBN:9781111527273
Author:Philip J. Pratt
Publisher:Course Technology Ptr
COMPREHENSIVE MICROSOFT OFFICE 365 EXCE
Computer Science
ISBN:9780357392676
Author:FREUND, Steven
Publisher:CENGAGE L
Np Ms Office 365/Excel 2016 I Ntermed
Computer Science
ISBN:9781337508841
Author:Carey
Publisher:Cengage
C++ for Engineers and Scientists
Computer Science
ISBN:9781133187844
Author:Bronson, Gary J.
Publisher:Course Technology Ptr