Multi-part question:
Part 1:
Use MySQL Workbench to create an EER model for a database that stores information about the downloads that users make. (When you create the EER model, it will be given a default name of mydb. For this exercise, it’s not necessary to change this name.) Define the tables that are necessary to implement this data structure:
Each user must have an email address, first name, and last name.
Each user can have one or more downloads.
Each download must have a filename and download date/time.
Each product can be related to one or more downloads.
Each product must have a name.
When you’re done defining the tables, create a diagram for the database. Then, use the diagram to define the required relationships. When you do that, be sure to use the relationship button that uses existing columns.
Part 2:
Create a view named order_item_products that returns columns from the Orders, Order_Items, and Products tables.
This view should return these columns from the Orders table: order_id, order_date, tax_amount, and ship_date.
This view should return the product_name column from the Products table.
This view should return these columns from the Order_Items table: item_price, discount_amount, final_price (the discount amount subtracted from the item price), quantity, and item_total (the calculated total for the item).
Part 3:
Write a SELECT statement that uses the view that you created in part 2 to get total sales for the five best selling products. Sort the result set by the order_total column in descending sequence.
Answers
Answer:
part 1:
Explanation:
Related Questions
Suppose a switch is built using a computer work station and that it can forward packets at a rate of 500,000 packets per second, regardless (within limits) of size. Assume the workstation uses direct memory access (DMA) to move data in and out of its main memory, which has a bandwidth of 2 Gbps, and that the I/O bus has a bandwidth of 1 Gbps. At what packet size would the bus bandwidth become the limiting factor
Answers
Answer:
When the transmission exceeds 667 packets
Explanation:
In computer networking, a packet is a chunk of data transmitted across the network. The packet size of an Ethernet network is 1.5kilobytes, while the packet size of an IP packet payload is 64 kilobytes.
A switch is a physical network device that connects nodes or workstations while communicating the packets (or frames). The I/O bus size bandwidth is 1Gbps which allows approximately 667 packets. Once this packet size is crossed, the bus becomes a limiting factor or bottle neck.
Which of the following apertures will give you the shallowest depth of field?
a)2.8
b)5.6
c)11
d)22
e)2
50 points and brainliest
Answers
Answer:
a.2.8
The f-stops work as inverse values, such that a small f/number (say f/2.8) corresponds to a larger or wider aperture size, which results in a shallow depth of field; conversely a large f/number (say f/16) results in a smaller or narrower aperture size and therefore a deeper depth of field.
Write a program that declares three one-dimensional arraysnamed miles, gallons, and mpg. Each array should be declared in main() and should becapable of holding ten double-precision numbers. The numbers that should be stored in miles are240.5, 300, 189.6, 310.6, 280.7, 206.9, 199.4, 160.3, 177.4, and 192.3. The numbers should bestored in gallons are 10.3, 15.6, 8.7, 14, 16.3, 15.7, 14.9, 10.7, 8.3, and 8.4.
Answers
Answer:
#include <iostream>
using namespace std;
int main(){
double miles[10] = {240.5, 300, 189.6, 310.6, 280.7, 206.9, 199.4, 160.3, 177.4, 192.3};
double gallons[10] = {10.3, 15.6, 8.7, 14, 16.3, 15.7, 14.9, 10.7, 8.3, 8.4};
double mpg[10];
for (int i = 0; i < 10; i++){
mpg[i] = miles[i]/ gallons[i];
cout << "mpg: " << mpg[i] << endl;
}
}
Explanation:
The C++ source code declares three arrays miles, gallons and mpg with an array length of 10. The gallons and miles arrays are assigned 10 array items each and they are used to push values to the mpg array in the for loop statement. The result of each item in the mpg array is displayed on the screen.
Proper answer=brainliest
Answers
Answer:
hehe
Explanation:
Review how to write a for loop by choosing the output of this short program.
for counter in range(3):
print(counter * 2)
Please explain it to me, I’m not learning Bc I don’t have a teacher.
Answers
Answer:
The output is:
0
2
4
Explanation:
First of all, the print statement must be indented with a tab, otherwise it is not part of the for loop.
The range(3) creates an array with values 0,1,2. The variable 'counter' gets those values one after another, and the print statement outputs this value doubled, hence the 0, 2 and 4 output.
Exodia
Principle of Computer Operation
Answers
Answer:
????
Explanation:
A company is performing an analysis on the computers at its main office. The computers are spaced along a single row. The analysis is performed in the following way: 1. Choose a contiguous segment of a certain number of computers, starting from the beginning of the row. 2. Analyze the available hard disk space on each of the computers. 3. Determine the minimum available disk space within this segment.
Answers
Answer:
array = input("Enter the list of computer memory: ").split(',')
int_arr = [int(x) for x in array]
segment = int(input("Enter the length of segment to analyze: "))
list_len = len(int_arr)
segList = []
mini = []
for x,i in enumerate(int_arr):
seg = int_arr[i-1:segment+i-1]
if len(seg) == segment:
segList.append(seg)
for x in segList:
mini.append(min(x))
result = mini.index(min(mini))
print("Segment with the minimum memory is: ",segList[result])
Explanation:
The python program prints out the segment after analysis, with the smallest disk memory space. The code gets the array of computer rows from the user input and segments the array with the number of segment input, then the minimum is compared for all segments in the network.
I WILL MARK BRAINLEST FOR THAT FIRST ANSWEr that is CORRECT!!!!!!!!!!!!
Which option lists the correct steps to apply a style?
1 Select the text, click the Home tab, and in the Styles Gallery, click to select a style to apply.
2 Select the text, click the Insert tab, and in the Formatting Gallery, click to select a style to apply.
3 Select the text, click the Home tab, and in the Font group, select a font, font size, and type to apply.
3 All of the options listed above are correct.
Answers
Answer:
Explanation:
Maybe all of the options listed above are correct
Ryan is a manager who maintains an official record of the events that happen in his company. At the end of the day, he writes about the events that took place. The words that he frequently mentions in his record are today, client, and meeting. The moment he types the first two letter of these words, they appear as a suggestion. Which feature of the word processing program makes these suggestions
Answers
Answer: word completion
Explanation:
Answer:
Word Completion
Explanation: because i took the test.
The U.S. military's standard for computer security is known as
DCS-3000.
TEMPEST.
Daubert standard.
Carnivore.
Answers
Answer:
TEMPEST.
Explanation:
TEMPEST is an acronym for Telecommunications Electronics Materials Protected from Emanating Spurious Transmissions and it is a secret (classified) project of the government of the United States of America that originated with its military in the 1960s based on the study of security with respect to telecommunication devices emitting Electromagnetic Radiation (EMR).
Hence, the U.S. military standard for computer security is known as TEMPEST.
The main purpose of the Telecommunications Electronics Materials Protected from Emanating Spurious Transmissions (TEMPEST) is to prevent the theft, compromise or interception of informations that are being transmitted on various telecommunications devices through the use of Electromagnetic Radiation (EMR).
Which retouching action is unethical?
A.
removing a person from a photograph intended for publication in a newspaper
B.
removing the saturation in a photograph intended as a magazine cover page
C.
adding extra lighting on subject’s face and body in a photograph meant for display in an exhibition
D.
changing the color of the subject’s hair in a photograph intended for use in an advertising campaign
Answers
Answer:
B.) removing the saturation in a photograph intended as a magazine cover page
Answer:
its A for Plato
Explanation:Trust me i got it right
Is it important to study information systems
Answers
Answer:
There is massive importance if you want to study information study.
It can help you understand the data, organize, and process the data, using which we can generate and share information.
Explanation:
It largely depends on your interest and requirement, but a better knowledge or clue about information systems may help analyze the data especially if you want to become a data scientist, machine learning, Artificial intelligence or deep learning, etc.
It can help you understand the data, organize, and process the data, using which we can generate and share information.
A great understanding of information systems may exponentially increase the productivity, growth, performance, and profit of the company.
Most Professions get exposed to information Systems no matter what their career objective is, as it may help in having better decision making based on the information they get through data.
So, yes!
There is a massive importance if you want to study information study.
Which Excel function or tool will you use to display the cells that are referred to by a formula in the selected cell
Answers
Answer:
Trace Precedent
Explanation:
Trace Precedent is a Microsoft Excel tool that is mostly used in auditing work to evaluate the connection or linkage between the cells in a spreadsheet. It is used to display the cells that are referred to by a formula in the selected cell. This is to locate the basis of an error in knowing how the formulas are adapted.
This can be done by clicking on the Formulas tab, then click on Formulas Auditing, then click on Trace Precedents.
Hence, in this case, the correct answer is TRACE PRECEDENTS.
The inside color of a shape or object is it’s
Answers
Answer:
A.
Explanation:
PLS HELP ME!! WILL GIVE BRAINLIEST
Read the following block of CSS code, and then answer the question.
body
{
position: relative;
left: 50px;
top: 50px;
}
What effect would this code have on the display of a box?
All content would be placed 50 pixels to the left of the current box.
The current box would be located 50 pixels to the left of the page border.
The current box would be located 50 pixels to the left of the next page element.
The current box would be located 50 pixels to the left of the first textual element.
Answers
Answer:
it is maybe:
A. All content would be placed 50 pixels to the left of the current box.Explanation:
Write an algorithm and draw a flowchart to enter the length and width of any room then check if length and width are equal find area and circumference of the square room. Otherwise, find the area and circumference of the rectangle room.
Answers
Answer: i have no clue
Explanation:
Most slide layouts include at least one ________ by default.
Question 2 options:
placeholder
action button
transition
animation
Answers
Hey
I think that the answer placeholder :)
Sry if im wrong tho
Answer:
The answer is placeholder.
1. Write an if statement that assigns 20 to the variable y, and assigns 40 to the variable z
2. Write an if statement that assigns 10 to the variable b, and 50 to the variable c if the
3. Write an if-else statement that assigns 0 to the variable b if the variable a is less
than 10. Otherwise, it should assign 99 to the variable b.
Has and how does it work?
Algorithm Workbench
of the variable x is greater than 100.
variable a is equal to 100.
Answers
Answer:
if x > 100:
y = 20
z = 40
Explanation:
This is similar to the last problem, except that the first number on a line is an ID number that identifies an account. The same ID number may appear on any number of lines. Use a Dictionary to accumulate, for each ID, the sum of all the numbers that are on all the lines with that ID number. Call the input file id_data.txt. Write an output file called ID_sums.txt. On each line of the output fille, print an ID number and the sum. Sort the lines by the numerical order of the IDs
Answers
Answer:
Following are the code to this question:
def getSum(ID):#defining a method getSum that accept an ID
t= 0#defining a variable t
while ID!= 0:#defining while loop to check ID not equal to 0
t+= ID % 10# holding remainder value
ID = ID // 10#holding quotient value
return t#return total value
def readRecord(S):#defining a method readRecord that hold list
f_Read = open("idInfo.txt","r")#defining a variable f_Read to open file
for C_ID in f_Read:#defining for loop to hold file value
C_ID = C_ID.replace('\n', '')#use replace method
S[C_ID] = getSum(int(C_ID))#use list to method value
f_Read.close()#close file
def sortRecord(ID_List, t_List):#defining a sortRecord
for x in range(len(ID_List) - 1):#defining for loop to calculate the length of list
for y in range(0, len(ID_List) - x - 1):#defining for loop to calculate the length of list
if ID_List[y] > ID_List[y+1]:#defining if block to check value is greater
ID_List[y], ID_List[y+1] = ID_List[y+1], ID_List[y]#swap the value
t_List[y], t_List[y+1] = t_List[y+1], t_List[y]#swap the value
def showReport(ID, t):#defining a method showReport that accept id and t
for i in range(len(ID)):#defining for loop to hold index value
print(ID[i]," ",t[i])#print index value
def writeRecord(ID_List, t_List):#defining a method writeRecord that accept two list
f_Write = open("idSorted.txt","w")#defining a variable f_Write to hold store value in file
for i in range(len(ID_List)):#defining a for loop to store value with index
f_Write.write(ID_List[i])#hold list value
f_Write.write(" ") #for space
f_Write.write(str(t_List[i]) + "\n")# add index value
f_Write.close()#close file
def run():#defining method run
S = {}#defining an empty list
readRecord(S)#passing list into readRecord method
ID_List = list(S.keys())#defining a variable that holds key value in list
t_List = list(S.values())#defining a variable that holds values value in list
sortRecord(ID_List, t_List)#calling a method sortRecord by passing value
showReport(ID_List, t_List)#calling a method showReport by passing value
writeRecord(ID_List, t_List)#calling a method writeRecord by passing value
if "run":
run()
Output:
Please find the attached file.
Explanation:
In the above program code, 6 method getSum, readRecord, sortRecord,showReport, writeRecord, and run method is defined, in which getSum and readRecord is used a single list store value in parameters, and in other methods, it accepts two parameter to store value in key and values form and use a txt file to store and take value.
In the run method, an empty list s is declared, that pass into the variable ID_List and t_List, and call the method, in this program two a text file "idInfo.txt" is used, that holds some value in the file, and create another file that is "idSorted.txt", in this file it stores the value in the numerical order of the ID's.
Write a program that reads a list of integers, and outputs the two smallest integers in the list, in ascending order. The input begins with an integer indicating the number of integers that follow. You can assume that the list will have at least 2 integers and fewer than 20 integers. Ex: If the input is: 5 10 5 3 21 2 the output is: 2 3 To achieve the above, first read the integers into an array. Hint: Make sure to initialize the second smallest and smallest integers properly.
Answers
Answer:
Following are the code to this question:
import java.util.*;//import package
public class Main //defining a Main class
{
public static void main(String[] args)//defining a main method
{
Scanner oxc = new Scanner(System.in);//defining main method
int n,m1,m2,num,t,i;//defining integer variable
n= oxc.nextInt();//input value from user end
m1 = oxc.nextInt(); //input value from user end
m2 = oxc.nextInt(); //input value from user end
if (m1 > m2)//defining if block that check m1 greater then m2
{
//swapping the value
t= m1;
m1 = m2;
m2 = t;
}
for (i=2;i<n;i++)//defining for loop that check the smallest value
{
num = oxc.nextInt();//input value from user end
if (num < m1) //defining if block that check num lessthan m1
{
m2 = m1;//store m1 value into m2
m1 = num;//store num value into m1
}
else if (num<m2)//defining else if block that check num lessthan m2
{
m2 = num;//store m2 value in num
}
}
System.out.println(m1 + " " + m2);//print value
}
}
Output:
5
10
5
3
21
2
2 3
Explanation:
In the above-given code, inside the main class the main method is declared, in method 6 integer variable "n,m1,m2, num,t, and i" is declared, and in the "n, m1, m2, and num" is used for input the value from the user end.
In the next step, and if block is defined that check m1 greater than m2, and swap the value.In the next step for loop s used that defines two conditions that check the two smallest value from the user input and print its value.Amanda would like to add text to a slide in her presentation. Select all of the correct methods she can use to add text.
Select "Text" from the Insert menu.
Click in the Task pane and enter text.
Draw a text box, click in it, and enter text.
Click in a placeholder and enter text.
PLEASE help
Answers
Answer:
Draw a text box
Explanation:
Because if she draw it she can edit and write what she want
Name the application used for creating Presentations___
1.MS PowerPoint
2.MS Word
3MS Excel
Answers
Answer:
1.MS PowerPoint
Page
U what is a common language that computers use
to talk with one another on- a network?
a. client b. Adapter
c. protocol d. operating
System
Answers
what is a Tiny Area Network?
Answers
Tiny area network is a small LAN(land area network )that only has a small nodes and is typically found in home or small office environment.
The quality of an image is compromised when, what are stretched ?
Answers
Answer:
pixels
Explanation:
The quality of an image is compromised when pixels are stretched the answer would be stretched.
What is resolution?The number of unique pixels that may be displayed in each dimension depends on the display resolution or display modes of a digital television, computer monitor, or display device.
As we know,
The smallest component on your screen is a pixel. Resolution: The size of the pixel is discussed here.
The resolution increases with pixel size. Although strictly a printing word, DPI (or dots per inch) refers to the number of actual ink dots on a printed object.
When pixels are stretched, an image's quality suffers.
Thus, the quality of an image is compromised when pixels are stretched the answer would be stretched.
Learn more about the resolution here:
https://brainly.com/question/989447
#SPJ6
David bought 5.2 pounds of oranges for $1.20 per pound . how much did david spend ..................................................... explain to me how you did it
Answers
Answer:
David spent $6.24.
Explanation:
5.2 times 1.2
Below is an ERD showing the 1:M relationship between Department and Employee entity types. This relationship is modeled as a Department JSON object as:Department: deptID,deptName,deptRoom,{deptPhone},{employee: empID, empName,empPhone,{empEmail}}Where {} indicates multi-valued.Part 1: Open the mydb database we created earlier and create a new department table with two fields:documentid (as an integer field) Jsondocument (as a JSON field)And add around 3 departments and each with 2 or 3 employees.Part 2: Use SQL to answer the following questions:Q1: Select all the records in the table.Q2: List the department names with their phones.Q3: A query to show the deptName and number of employees of the department.Q4: A query to show all the employees of a department of your choice using deptName as criteria.USE MYSQL
Answers
Answer:
hi
Explanation:
As you draw a star, pressing the shift key while you drag increases the number of points on the star. True or false
Answers
Answer:
true
Explanation:
4.8 Code Practice: Question 1
I need help
Answers
for x in range(5,76,5):
print(x, end=" ")
I wrote my code in python 3.8. Hope this helps
Benjamin took a photo that focused on certain part of an image while blurring out the rest. What is this effect called?
A.
alternate focus
B.
major focus
C.
minor focus
D.
selective focus
Answers
Answer:
(D) selective focus
Explanation: hope this helps!
Answer:
D. Selective Focus
Explanation:
Photographers commonly use the tilt-shift effect to focus on a certain part of the image while blurring the rest of the photograph. They refer to this as selective focus.