why is the following query not valid as a natural join? select customer.first name, customer.last name, employee.first name, employee.last name from customer natural join employee;

Answers

Answer 1

The query is not valid as a natural join because the two tables, Customer and Employee, do not have any columns in common that could be used for a natural join.

What is the columns ?

A column is a vertical structure that is used to support a structure or hold objects, like a pillar in a building. It can also refer to aA column is a vertical structural element in architecture and construction. It is used to support beams or arches on load-bearing walls, or to provide an ornamental feature. Columns are typically circular, square, or polygonal in shape, and can be constructed from a variety of materials such as stone, brick, concrete, metal, and wood. Columns can also be used to support ceilings, roofs, and other architectural features. Columns are commonly used in the design of bridges, temples, and other large-scale structures, and can be found in both interior and exterior spaces.

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Related Questions

Which of the following portions of the operating system typically do NOT make up the TCB (Trusted Computing Base)? Select all that apply.
a. User protection
b. Inter-process communication
c. File protection
d. Kernels
e. Memory protection

Answers

Inter-process communication (IPC) is a mechanism for exchanging data between processes. Although it is essential for system performance, IPC is not typically part of the TCB as it is not critical for system security. Option (B) is correct.

The Trusted Computing Base (TCB) of the operating system is made up of those portions of the operating system that are necessary for system security, which include kernel, user protection, memory protection, and file protection. Inter-process communication is typically not part of the TCB, so option b is correct. The TCB of an operating system is the foundation of its security mechanisms.

The Trusted Computing Base (TCB) is made up of portions of the operating system that are essential for system security, and these include kernel, user protection, memory protection, and file protection.The TCB is the part of the operating system that provides security, and it is a set of all hardware, software, and firmware components that work together to implement the security policy. Its responsibility is to ensure the proper execution of security functions and to ensure the proper isolation of sensitive resources.

Inter-process communication (IPC) is a mechanism for exchanging data between processes. Although it is essential for system performance, IPC is not typically part of the TCB as it is not critical for system security.

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The ______ ratio defines a display's width relative to its height.

Answers

Answer:

The answer to this question is given below in the explanation section.

Explanation:

This question is about to fill in the blank.

The correct answer is:

The aspect ratio defines a display's width relative to its height.

An aspect ratio is a proportional relationship between the width and height of the image. It describes the image's shape in terms of width and height.

The aspect ratio can be written in the formula of width to height.

For example; if the display or image has an aspect ratio of 2:4, then it means that the display height is 2 times of width.

Another example of a square image or display is 1:1 that means that the aspect ratio is the same (width and height are the same)

Which term refers to the use of the internet at work for personal use?.

Answers

Which term refers to the use of the Internet at work for personal use? cyberloafing.Cyberloafing is a term used to describe the actions of employees who use their Internet access at work for personal use while pretending to do legitimate work.

12.0% complete question which of the following best represents the way data moves through a computer system? a.processing, storage, input, and output. b.output, input, processing, and storage. c.processing, input, output, and storage. d.input, processing, output, and storage.

Answers

The correct answer is option d: input, processing, output, and storage. This represents the way data moves through a computer system in the most accurate manner.

The way data moves through a computer system is an important concept to understand when working with technology. There are several steps involved in this process that are essential for the computer to function properly. In this answer, we will discuss the different stages of data movement and provide an explanation for each. Data movement in a computer system involves several key stages. The first stage is input, where data is entered into the computer system through various means, such as a keyboard or mouse. Once the data is inputted, it moves on to the processing stage, where the computer processes the data using software and hardware. After processing, the data moves on to the storage stage, where it is stored on the computer's hard drive or other storage devices such as flash drives or cloud storage. Finally, the output stage involves displaying or transmitting the processed data in a format that can be easily understood by the user. In conclusion, the best representation of the way data moves through a computer system is d) input, processing, output, and storage. This sequence accurately describes the key stages of data movement in a computer system and is essential for understanding how computers function. By understanding this process, we can better utilize technology to meet our needs and accomplish our goals.

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The founders of the Web developed a system of __ documents. A. Hypertext B. parsed. C. dynamic. D. Active

Answers

The correct answer is A. Hypertext.

The founders of the Web, Sir Tim Berners-Lee and his colleagues at CERN, developed a system of hypertext documents that could be accessed and linked together via the Internet. Hypertext is a method of organizing and presenting information in which text, images, and other media are linked together in a non-linear fashion. This allows users to navigate through the information in a way that is more flexible and interactive than traditional linear documents, such as books or articles.

In the early days of the Web, hypertext documents were created using HTML (Hypertext Markup Language), a markup language that allows authors to add links and other formatting to their documents. Today, the Web has evolved to include a wide range of technologies and interactive features, but the fundamental concept of hypertext remains at its core.

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The ? bar gives you information related to the document such as slide number, theme and whether or not the computer has found an error in the text

Answers

Answer:

Status bar

Explanation:

The status bar is a horizontal bar usually located at the bottom of the screen or window, showing information related to a document being edited such as slide number, current theme template, spelling and grammar, language, zoom, notes, comments, permissions, signatures e.t.c.

It can be used to group information by dividing into sections and also provides several View options.

Plz help. I will give brainiest.

Plz help. I will give brainiest.

Answers

Answer:

Question 2 : B

PLZ HELP What is the problem with this program?

name = "Jenny"

name = input("What is your name?")

A.
the variable name has to begin with a capital letter

B.
input should be output

C.
the first line should be omitted because the second line defines the variable

D.
the variable needs to begin with a number to distinguish it from other variables

Answers

Answer:

B

Explanation:

the answer is B imput should be output

Answer: I think the answer is (C)

I'm doing the exam rn and that what i think

Explanation:

a graphical method that can be used to show both the rank order and shape of a data set simultaneously is a

Answers

The rank order and form of the data distribution are both displayed using a stem-and-leaf diagram.

Which of the following graphical methods is used to present and contrast two variables among the possible answers?

This sort of visual representation of data is called a scatterplot. A scatterplot shows how two numerical variables measured for the same persons are related to one another.

Which kind of graphical display would be most useful for comparing different data sets to one another?

Bar graphs can be used to compare information between groups or to track changes over time. Bar graphs are especially beneficial when there are considerable changes or when comparing one group to other groups.

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whats the value of 6 in this number 6,720,341

Answers

Answer:

6,000,000/six million.

BTW it's a math q. Not computer

smart tv has _____ intergrated with it

Answers

Answer:

an operating system

Explanation:

how to use function in python

Answers

Answer:

Use the keyword def to declare the function and follow this up with the function name.

Add parameters to the function: they should be within the parentheses of the function. ...

Add statements that the functions should execute.

You are the newly hired networking administer and technician for the law firm Dewey, Cheatem and Howe, which is a large firm with over 100 attorneys and staff. DCH has just moved to a newly constructed building where it occupies three floors. At the previous location, each of the workstations on its network had Internet access, but there was relatively little resource and To this point in time, any networking of shared documents has largely been "sneakernet".


In its new offices, you are being asked to implement the networking with consideration for future growth or expansion. Your first task is to decide on the IP addressing scheme you will implement. Which IP address standard (IPv4 or IPv6) is your choice? Why did you make this choice?

Answers

It's recommended to use IPv6 as the IP addressing scheme because of its features and backward compatibility with IPv4.

In this case, the choice of the IP address standard depends on the number of hosts, scalability, and future expansion plans. Given that the law firm has just moved to a newly constructed building and there is consideration for future growth or expansion, it's recommended to use IPv6.

IPv6 was created to address the limitations of IPv4, which includes the depletion of IPv4 addresses because of the huge increase in the number of internet-connected devices. IPv6 uses a 128-bit addressing system compared to IPv4's 32-bit addressing system. This means that IPv6 can provide almost limitless IP addresses to the network.

IPv6 features include:

Support for multicast traffic. 128-bit source and destination IP addresses. Automatic address configuration. No need for DHCP in most environments. Better security and encryption features. Simplified header format.

IPv6 also provides backward compatibility with IPv4, allowing for easy migration to the new protocol while still maintaining backward compatibility with IPv4 networks.

As a result, it's recommended to use IPv6 as the IP addressing scheme because of its features and backward compatibility with IPv4.

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Fundamental of Computer Science
Prompt:
What is a class that you believe you could learn just as well in an online class as an in
person class? What is a class that you think you need to have in person if you want to learn
and pass the course? How are these subjects different? What factors contributed to your
decision?

Answers

Answer:

Coding and Hardware Hacking

Explanation:

You can learn coding just as well through a online class or even on the internet through yo*tube than an in person class whereas it would be alot easier learning hardware hacking in person because you are given the opportunity to ask and can be corrected for small mistakes due to the task being manual. Coding can be learnt online independently if needed although so can hardware hacking but having a teacher to correct you and teach you handy tricks from their experience will get you further in that sense.

URGENT! REALLY URGENT! I NEED HELP CREATING A JAVASCRIPT GRAPHICS CODE THAT FULFILLS ALL THESE REQUIREMENTS!

URGENT! REALLY URGENT! I NEED HELP CREATING A JAVASCRIPT GRAPHICS CODE THAT FULFILLS ALL THESE REQUIREMENTS!

Answers

In the program for the game, we have a garden scene represented by a green background and a black rectangular border. The cartoon character is a yellow circle with two black eyes, a smiling face, and arcs for the body. The character is drawn in the center of the screen.

How to explain the information

The game uses Pygame library to handle the graphics and game loop. The garden is drawn using the draw_garden function, and the cartoon character is drawn using the draw_cartoon_character function.

The game loop continuously updates the scene by redrawing the garden and the cartoon character. It also handles user input events and ensures a smooth frame rate. The game exits when the user closes the window.

This example includes appropriate use of variables, a function definition (draw_garden and draw_cartoon_character), and a loop (the main game loop). Additionally, it meets the requirement of using the entire width and height of the canvas, uses a background based on the screen size, and includes shapes (circles, rectangles, arcs) that are used appropriately in the context of the game.

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which is most harmful computer virus define​

Answers

Answer:

Spyware is the most harmful virus.

It enters into someones computer as a spy and steals the ones personal information, data and other codes.

Explanation:

Online analytical processing is another name for enterprise application.
1) True
2) False

Answers

False. Enterprise application is not another name for online analytical processing (OLAP). These are not interchangeable terms, though.

A technology called online analytical processing (OLAP) is used to evaluate data and draw insightful conclusions from sizable databases. Through the usage of OLAP, users can interactively evaluate multidimensional data from a variety of angles, including time, place, and product lines. Data is organised into cubes or hypercubes using a multidimensional model in OLAP systems, allowing users to quickly examine the data and spot patterns and trends. Advanced analytics skills like data mining and predictive modelling are also offered by OLAP tools. In order to give users access to real-time information on sales, customer behaviour, and corporate performance, OLAP is frequently utilised in business intelligence and analytics systems. In today's data-driven corporate climate, it is a crucial tool for making data-driven decisions and gaining a competitive edge.

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what is a good wall adapter for your house?​

Answers

Answer:

RAVPower Dual-Port*

Explanation:

What is constructive criticism?

Advice and possible solutions intended to help or improve something
Information given to others as a way to make them feel unintelligent
Reports about decreasing profits
Statements and no possible solutions aimed at showing problem areas

Answers

Answer:

Constructive cristsism is a helpful way of giving feedback that provides specific, actionable suggestions. Or, its a nice way of criticizing someone and telling them what to do better

Answer:

Advice and possible solutions intended to help or improve something

Explanation:

I took the test and Got it Correct!

what is a compter crime?​

Answers

Answer:

Cy***rcrime, also called computer cr**me, the use of a computer as an instrument to further illegal ends, such as committing fr4ud, traf**icking in child por****graphy and intellectual property, stealing id

A prime number is a positive integer that is evenly divisible only by 1 and itself. Write a predicate function called is_prime that accepts an integer parameter and returns true if that number is prime and false otherwise. Assume that the parameter is a positive integer.

Answers

The requirement of the given question is that we need to write a function that takes a positive integer number as a parameter and checks if the number is a prime number or not. If the number is a prime number then it returns true. But if the number is not a prime number then it returns false.

The required function is written here in Python:

def is_prime(number): ''' This is function named “is_prime” that accepts a     positive integer “number” as a parameter’’’

if number < 2: '''It checks if the “number” is less than 2. The smallest                                                   prime number is 2 so no need to check numbers less                                              than 2'''

return False ''' If the above condition is true , it returns “false” that the                 “Number” is not prime.'''

for i in range(2, number):  '''This is for loop runs with an increment of one through all numbers specified in the “range function”                                             i.e. from 2 to the value of “number” exclusively'''

  if (number % i) == 0:     ''' Checks if ”0” remainder is found, then           the “number” is not prime'''

    return False        # “Number” is not prime so it returns “false”

return True '''When it has looped through the entire range of                                                               values from 2 to “number-1” and does not find a value that gives “0” remainder, then the “number” is prime, thus returns “true”.'''

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it is recommended that a copy of a data backup be stored at an off-site location.

Answers

It is highly recommended that a copy of a data backup be stored at an off-site location.

This is an important step in ensuring that data can be recovered in case of a disaster, such as a fire, flood, or other catastrophic event that could destroy the original data and backup copies stored in the same location. By storing a backup copy off-site, businesses can reduce the risk of losing critical data and improve their chances of recovering from a disaster. This can help minimize downtime and ensure that business operations can be resumed as quickly as possible. There are various options for storing data backups off-site, including cloud-based backup services, remote data centers, and physical storage locations, such as a safe deposit box or a secure off-site storage facility. The choice of an off-site backup storage location will depend on factors such as the amount of data being stored, the level of security required, and the budget available for backup and disaster recovery solutions.

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Who are the primary users of erp systems?.

Answers

Explanation:

resellers, partners, suppliers, and distributors.

Write a program to declare a matrix A[][] of order (MXN) where ‘M’ is the number of rows and ‘N’ is the
number of columns such M and N must be
greater than w and less than 20. Allow the user to input





integers into this matrix. Perform the following tasks on the matrix:
(a) Display the input matrix
(b) Find the maximum and minimum value in the matrix and display them along with their position.
(c) Sort the elements of the matrix in ascending order using any standard sorting technique and rearrange them in the matrix.

Can anybody show the program and explain please
Urgent.

Answers

Answer:

import java.io.*;

import java.util.Arrays;

class Main {

   public static void main(String args[])

   throws IOException{

       // Set up keyboard input

       InputStreamReader in = new InputStreamReader(System.in);

       BufferedReader br = new BufferedReader(in);

 

       // Prompt for dimensions MxN of the matrix

       System.out.print("M = ");

       int m = Integer.parseInt(br.readLine());

       System.out.print("N = ");

       int n = Integer.parseInt(br.readLine());

       // Check if input is within bounds, exit if not

       if(m <= 2 || m >= 10 || n <= 2 || n >= 10){

           System.out.println("Matrix size out of range.");

           return;

       }

       // Declare the matrix as two-dimensional int array

       int a[][] = new int[m][n];

 

       // Prompt for values of the matrix elements

       System.out.println("Enter elements of matrix:");

       for(int i = 0; i < m; i++){

           for(int j = 0; j < n; j++){

               a[i][j] = Integer.parseInt(br.readLine());

           }

       }

       // Output the original matrix

       System.out.println("Original Matrix:");

       printMatrix(a);

       // Sort each row

       for(int i = 0; i < m; i++){

         Arrays.sort(a[i]);

       }

       // Print sorted matrix

       System.out.println("Matrix after sorting rows:");

       printMatrix(a);

   }

   // Print the matrix elements separated by tabs

   public static void printMatrix(int[][] a) {

       for(int i = 0; i < a.length; i++){

           for(int j = 0; j < a[i].length; j++)

               System.out.print(a[i][j] + "\t");

           System.out.println();

       }

   }

}

Explanation:

I fixed the mistake in the original code and put comments in to describe each section. The mistake was that the entire matrix was sorted, while only the individual rows needed to be sorted. This even simplifies the program. I also factored out a printMatrix() method because it is used twice.

A____is the smallest unit of measurement used to describe computer processing and storage. Enter the answer in the box

Answers

Answer:

the smallest unit of measurement used for measuring data is a bit

A bit




Ckfhdhxtb tu j tu hg DF Uc

What is the author's purpose for writing this article? A to persuade readers to consider a career in aerospace engineering and at NASA B to caution readers about the difficulties that aerospace engineers encounter C to highlight the experiences of Tiera Fletcher growing up and as an aerospace engineer D to promote Tiera Fletcher's book and her nonprofit organization, Rocket With The Fletchers

Answers

Answer:

C to highlight the experiences of Tiera Fletcher growing up and as an aerospace engineer

Explanation:

Dream Jobs: Rocket Designer, a Newsela article by Rebecca Wilkins was written with the intent of informing the readers of how Tiera Fletcher developed a love for mathematics at an early age and further developed a desire to be a Space Engineer which she succeeded at. She highlighted the different steps she took before she realized her goal. Some of these steps included working as an intern in several space establishments and performing research.

Today, she is very successful in her career and hopes  that young ones can pursue a career in any STEM careers of their choice.

Answer:

c on newsella

Explanation:

A syntax error occurs when a programming language rule is broken.
O True
O False

Answers

Trueeeeeeeeeeeeeeeeeeeeeee

Answer:

true

Explanation:

For which programming task would you use a while loop?

A) Computing the average of a list of 30 integers

B) Copying the contents of one list of 500 characters to another list

C) Drawing a circle with a specific radius

D) waiting for a keyboard key to be pressed

Answers

Answer:

D

Explanation:

Alright, so I have a wireless mouse that uses a dongle (it's not Bluetooth nor wired). But recently I realized that none of the buttons are working. The only thing that works is your able to move the mouse on the screen. But the left and right-click, scroll wheel, and the two side buttons are all unresponsive. I changed the batteries and took it apart to see if any wires might have gotten disconnected. Yet nothing. Anybody know what's wrong with it or knows how to fix it? I really don't feel like buying a new one.

Answers

Answer:Mouse is not working because you haven't changed your battery for months.

Remember that, most of wireless mouses use AA 1.5V battery for it's power on. If you've let your computer and mouse set on, then the battery can only run around 5-6 months. If you turn off your mouse everytime you're not using then the battery life might get longer. So, all you have to do is buy new batteries and replace it. Follow steps of replacing battery in this video.

(Consider buying dry battery for using longer)

No.2: Loose battery in the tray

This is quite common as well. We understand that the mouse made materials can have its own changing. Sometimes, you might drop your mouse, then after that, the loosen battery just happening around. A loosen battery might get your wireless mouse not working well. It works then stop at the middle. Follow the easy steps to fix this state of mouse is not working.

No. 3: Bad Pairing.

Due to some reasons, bad pairing can happen and get your mouse stuck on laptop screen. Bad pairing might be from overworking or overloading tasks on your PC. Easy quick fix for bad pairing is disconnect your USB receiver for a while and re-plug in later on.

No.4: On/Off Switch or Power button on the mouse just drop or loosen in

Many people might have problems with their mouse on/off switch button. Don't worry, this can be fixed as well. You can open the mouse (just look under the battery, there is a single screw). Open the mouse from this screw, and disassembly it carefully. You can see the on/off switch is just around the corner. Now, you can, reattach the button and close the mouse correctly.

No. 5 : Buy a new mouse

I've suggested a way to search for a new wireless mouse with USB Unifying Receiver. For a wireless mouse that allows Unifiying receiver, then you don't worry when your current usb receiver get lost (because, you can always buy a new usb receiver).

Explanation:

divisions of a keyboard​

Answers

Answer:

There are 4 SECTORS!

Explanation:

Alphabetical (Word keys, main function keys), Numeric (Number keys. which is the number pad to your right), The function keys (Like Num. lock, and the F keys that go through F1 to F12), and the Cursor keys (Which is LITERALLY just the arrow keys) But if you were a gamer like me, you'd know that WASD is better for gamers.

Another mention: Control Keys ( Includes your Windows Icon, Left Ctrl, Alt, Fn(If it's there) Your Tab key, your Caps, Shift, and Right Ctrl.)

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Characteristics of prehistoric Art Which of the following functions has an initial value of 0 and a rate of change of 3? In which of the following is the thyroid gland found? el precio del kilogramo de jitomate es de 36.50 juana compro 3 1/2 kilogramos cuanto pago por todo el jitomate? Which technology collects data for weather, climate, and environmental monitoring from space?radarsatellitesweather stationsweather balloons PLS HELP!Read the poem.The Song of Wandering Aengusby William Butler YeatsI went out to the hazel wood,Because a fire was in my head,And cut and peeled a hazel wand,And hooked a berry to a thread;And when white moths were on the wing,And moth-like stars were flickering out,I dropped the berry in a streamAnd caught a little silver trout.When I had laid it on the floorI went to blow the fire a-flame,But something rustled on the floor,And someone called me by my name:It had become a glimmering girlWith apple blossom in her hairWho called me by my name and ranAnd faded through the brightening air.Though I am old with wanderingThrough hollow lands and hilly lands,I will find out where she has gone,And kiss her lips and take her hands;And walk among long dappled grass,And pluck till time and times are done,The silver apples of the moon,The golden apples of the sun.Read these lines from "The Song of Wandering Aengus." It had become a glimmering girl With apple blossom in her hairHow does the symbol of the glimmering girl affect the meaning in the poem?A. It highlights the rebirth of nature every spring.B. It represents the girl's connection to the beauty and vitality of nature.C. It highlights the memories Aengus has of his childhood.D. It represents the myth of wood nymphs in the woods. PLease help! I need help asap three pinned-end columns of the same material have the same length and the same cross-sectional area (see figure). the columns are free to buckle in any direction. the columns have cross sections as: (a) a circle, (b) a square, and (c) an equilateral triangle. determine the ratios pa : pb : pc of the critical loads for these columns. Ram has decided to retire. Ali is a lender from a neighboring village who decides to offer loans in Bagli. However, since he is from a different village, he does not know the farmers in Bagli. He only knows that 60% of the farmers are SAFE and 40% are RISKY. As a result, he has to charge a single interest rate to everybody who wants a loan. Like Ram, Ali is a monopolist and his opportunity cost is also 25%. All settings in Problem 1 still apply except for the information setting.(a)What type of asymmetric information problem does Ali face?(b)What is the maximum interest rate Ali can charge so that both types of farmers would want to borrow? If the density of mercury is 13.6g/ml, what is the mass in grams of 3426 ml of the liquid?A copper cylinder, 12.0 cm in radius, is 44.9 cm long. If the density of copper is 8.90 g/cm^3, calculate the mass in grans of the cylinder. (Assume pi=3.14 (08.05) Some students reported how many pets they had. The dot plot shows the data collected:Students' Pets0 1 2 3 4Number of PetsWhat do the dots above the number 3 indicate?There are exactly 2 students with 3 pets.There are exactly 3 students with 2 pets.There are exactly 2 students with more than 3 pets.There are exactly 3 students with more than 2 pets. What are the differences between teacher and professor ? Clarify the interrelation of education and occupation . Suppose that instead of leasing the Accord, Nigel decides to buy the Honda Accord for $22,180. Would this contract need to be in writing to be enforceable? Under the great compromise, small states were given an advantage in the:_________ hat business strategy is best supported by a structure with moderate formalization, moderate centralization, and moderate specialization? low-cost differentiation innovation Which value is always irrational?A. Square root of a perfect squareB. Cube root of a perfect squareC. Square root of a prime numberD. Cube root of a composite number can anyone help? im so bad at math lolill give brainlest What is a causal relationship in a text? Use the Distributive Property to simplify the expression.8(5g+52) = Given that cos(theta) = 8/17 and that theta lies in Quadrant IV, what is the exact value of sin 2(theta)?