EBK DATABASE CONCEPTS
7th Edition
ISBN: 9780133544886
Author: AUER
Publisher: PEARSON CUSTOM PUB.(CONSIGNMENT)
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 2, Problem 2.9RQ
Program Plan Intro
Relation:
Relation is a two-dimensional table in which data is named. The relations have the named columns and numbers which denote the unnamed rows.
- Although relation is defined as the two-dimensional table of data, not all the tables are considered as relations.
- There are some properties that differentiate relation tables from non-relation tables.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
I need help writing pseudocode for calculating class score average by putting in 5 test scores, and showing the average from all 5 inputs and the GPA score.Starting with 3 functions outside of a main module. The functions are getScore(), getGPAPoint(Integer score), and getAverage(). Function getscore is an input for a grade as a class percentage. Function getGPAPoint will calculate the score into a GPA point and return as a float (values of 90-100 as 4.0, 80-89 as 3.0, 70-79 as 2.0, 60-69 as 1.0, and anything below 60 as 0.) Function averageGPA will finally make a call to both previous functions when the user inputs numbers 5 times that then calculates the average (add up all the scores, divide by 5) and the average grade alongside displaying the average GPA.
End result is a main module that makes a proper call to the averageGPA function and display its results. Need help with this!
Please original work
Why is integration between data collection and business analysis so important to success in an organization that uses business analytics?
How can a company that is just starting to use business analytics set up its program for success right from the beginning?
Please cite in text references and add weblinks
How to make a 1 bit adder with CLA?
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
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-engineering and related others by exploring similar questions and additional content below.Similar questions
- I need help writing pseudocode for this function. The following pseudocode statement calls a function named half, which returns a value that is half that of the argument. (Assume both the result and number variables are Real.) Set result = half(number)arrow_forwardNeed help converting my pseudocode to python, AND have a flowchart showing everything!The code:Main Module Call InputModuleEnd Main Module Module InputModule // This module gets input from the user Declare Principal, AnnualRate, Years as Float Output "Enter the Principal amount (P): " Input Principal Output "Enter the Annual Interest Rate (in percentage, e.g., 5 for 5%): " Input AnnualRate Output "Enter the number of Years to repay the loan: " Input Years Call DisplayPayment(Principal, AnnualRate, Years)End Module Module DisplayPayment(Principal, AnnualRate, Years) // This module calculates and displays the monthly payment Declare R, N as Float Declare MonthlyPayment as Float Declare PowerFactor as Float // second local variable // Calculate monthly interest rate R and number of months N Set R = (AnnualRate / 100) / 12 Set N = Years * 12 // Calculate PowerFactor = (1 + R)^N Set PowerFactor = (1 + R) ^ N // Calculate…arrow_forwardWhats wrong with my pseudocode? Where did I make an error?Code: Module main() Declare Real mileage Call getMileage() Display “You’ve drive a total of “, mileage, “ miles End Module Module getMilage() Display “Enter your mileage: “ Input mileage End Modulearrow_forward
- I need help!! Writing a long pseudocode for a modular program that will display the monthly payment on a mortgage. P=Principal amount borrowed (loan)R=Rate of interest computed for each monthN=Number of months to pay back the loan or mortgageThe help I need is creating a module that you can input the principle, rate of percentage, and years to repay the loan, and another module "displaypayment" that accepts the 3 values and calculates the monthly payment needed for the rates. Lastly 2 local variables needed!Equation:Monthly Payment=[(R*(1+R)^N)/((1+R)^N-1)]*Parrow_forwardTwo pseudocode questions I need help with: How do I design a module called findSum that will display the sum of two integer passed by parameter, and a module called findArea that will display the area of a rectangle when passed 2 real values for the length and width of the rectangle?arrow_forwardFor the pseudocode module, what is displayed with the call findValue(1, 4, 2)?Module findValue(Integer a, Integer b, Integer c) Declare Integer value value = b + c - a Display valuearrow_forward
- I need help finishing my python rock paper scissors code, where it asks the user "rock, paper, scissors", the user types either option (repeatedly asks until its one of the three), and for a random option from the code to select also rock paper scissors. The end result would be you winning, code winning, or a tie.My code:import randomOPTIONS = ("ROCK", "PAPER", "SCISSOR") def getInput(): """ Function getInput() will receive and validate user input to be the string ROCK, PAPER, or SCISSOR. Input must be spelled correctly and in all capital letters. Function will return the validated input @return user input as ROCK, PAPER, OR SCISSOR """ #need help here def checkWinner(user, computer): """ Function checkWinner will accept 2 string parameters that must be unique values of ROCK, PAPER, or SCISSOR. Functions should return true if the string in parameter user beats the string in parameter computer in a game of rock…arrow_forwardI need help understanding how could I got the IP Address for the 1st Host on this Subnet, the IP Address for the Last Host on this Subnet & the Broadcast Address for this Subnet My Explanation:8 bits --> 17 & 0 128 64 32 16 | 8 4 2 1 0 0 0 1 0 0 0 1 -->17+ 0 0 0 0 0 0 0 0 --> 0 0 0 0 0 0 0 0 0 --> 0 (The Major (Base) Network Address): 142.20.33.0 To find the broadcast address, we can set all the bits in the host portion of the address to 1, which gives us 142.20.33.255. Based on the subnet mask 255.255.255.0, no bits were borrowed from the host portion, meaning 8 bits remain in the host portion. Using the formula 2^h – 2 (where h represents the number of host bits), we get 2^8 - 2 = 254 hosts. 8 bits --> 17 & 252 128 64 32 16 | 8 4 2 1 0 0 0 1 0 0 0 1 --> 17+ 1 1 1 1 1 1 0 0 --> 252 0 0 0 1…arrow_forwardWhich of the following opens when you click the launcher in the Size group on the Ribbon? Question 19Select one: a. Size dialog box b. Layout dialog box c. Width and Height dialog box d. Format dialog boxarrow_forward
- How do you resize a graphic object horizontally while keeping the center position fixed? Question 20Select one: a. Drag a side sizing handle. b. Press [Ctrl] and drag a side sizing handle. c. Press [Alt] and drag a side sizing handle. d. Press [Shift] and drag a side sizing handle.arrow_forwardWhich of the following indicates that a graphic is anchored to the nearest paragraph? Question 18Select one: a. X and Y coordinates b. An anchor symbol c. A paragraph symbol d. ruler marksarrow_forwardWhich command in the Adjust group allows you to change one picture for another but retain the original picture's size and formatting? Question 17Select one: a. Change Picture b. Replace c. Swap d. Relinkarrow_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
Database Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781305627482Author:Carlos Coronel, Steven MorrisPublisher:Cengage Learning
Database Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781285196145Author:Steven, Steven Morris, Carlos Coronel, Carlos, Coronel, Carlos; Morris, Carlos Coronel and Steven Morris, Carlos Coronel; Steven Morris, Steven Morris; Carlos CoronelPublisher:Cengage Learning
Np Ms Office 365/Excel 2016 I NtermedComputer ScienceISBN:9781337508841Author:CareyPublisher:Cengage
A Guide to SQL
Computer Science
ISBN:9781111527273
Author:Philip J. Pratt
Publisher:Course Technology Ptr
Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781305627482
Author:Carlos Coronel, Steven Morris
Publisher:Cengage Learning
Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781285196145
Author:Steven, Steven Morris, Carlos Coronel, Carlos, Coronel, Carlos; Morris, Carlos Coronel and Steven Morris, Carlos Coronel; Steven Morris, Steven Morris; Carlos Coronel
Publisher:Cengage Learning
Np Ms Office 365/Excel 2016 I Ntermed
Computer Science
ISBN:9781337508841
Author:Carey
Publisher:Cengage