answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Nutka1998 [239]
2 years ago
14

Which key retains its uniqueness even after you remove some of the fields?

Computers and Technology
1 answer:
Natasha_Volkova [10]2 years ago
8 0

Answer:

Primary key retains its uniqueness even after you remove some of the fields.

Explanation:

I am assuming that this question is related to database. Therefore, I am answering it according to database context.

In database, you can have multiple rows and columns. Each column shows a specific attribute while each row plots the data according to the attributes. However, there is the first column of each of main table that has unique set of values. It is called the Primary Key. Some key features of primary key are:

  • It always contains the unique value.
  • Its value cannot be null.
  • A table can have at max one primary key.
  • It can be the combination of multiple columns but it must be unique.

Therefore, the primary key has the ability to retain its uniqueness even after you remove some of the fields.

You might be interested in
#A year is considered a leap year if it abides by the #following rules: # # - Every 4th year IS a leap year, EXCEPT... # - Every
lara [203]

Answer:

To check if the year comes under each 100th year, lets check if the remainder when dividing with 100 is 0 or not.

Similarly check for 400th year and multiple 0f 4. The following C program describes the function.

#include<stdio.h>

#include<stdbool.h>

bool is_leap_year(int year);

void main()

{

int y;

bool b;

 

printf("Enter the year in yyyy format: e.g. 1999 \n");

scanf("%d", &y);     // taking the input year in yyyy format.

 

b= is_leap_year(y);  //calling the function and returning the output to b

if(b==true)

{

 printf("Thae given year is a leap year \n");

}

else

{

 printf("The given year is not a leap year \n");

}

}

bool is_leap_year(int year)

{

if(year%100==0)   //every 100th year

{

 if(year%400==0)   //every 400th year

 {

  return true;

 }

 else

 {

  return false;

 }

}

if(year%4==0)  //is a multiple of 4

{

 return true;

}

else

{

 return false;

}

}

Explanation:

Output is given as image

5 0
1 year ago
Your computer has gradually slowed down. What's the most likely reason?
sweet-ann [11.9K]
It could be old ... could be your connection to the internet... could be a virus. You can go to walmart or your super store and buy a usb for your computer. There are ones that can speed up your computer. I had to buy it for mine and it worked. It might be over 20 dollars depends on where you go.
8 0
2 years ago
When using the Python shell and code block, what triggers the interpreter to begin evaluating a block of code
finlep [7]

Answer:

The answer is "A blank line".

Explanation:

The blank line initiates the interpreter to start examining the line of statements whenever the Python shell as well as the code block are used.  

  • It is also known as the line that has nothing but spaces or lines without texts or a line.  
  • It prints an empty sheet,  which leaves its performance with such a blank line.

5 0
1 year ago
The following code should take a number as input, multiply it by 8, and print the result. In line 2 of the code below, the * sym
Juli2301 [7.4K]

Answer:

num = int(input("enter a number:"))

print(num * 8)

Explanation:

num is just a variable could be named anything you want.

if code was like this num = input("enter a number:")

and do a print(num * 8)

we get an error because whatever the user puts in input comes out a string.

we cast int() around our input() function to convert from string to integer.

therefore: num = int(input("enter a number:"))

will allow us to do  print(num * 8)

6 0
2 years ago
It has been said that the quality of our relationships depends in large part on the quality of our
timurjin [86]

Answer:

people

Explanation:

6 0
1 year ago
Other questions:
  • Gabe wants to move text from one document to another document. He should _____.
    10·2 answers
  • A remediation liaison makes sure all personnel are aware of and comply with an organization's policies.
    9·1 answer
  • Does the Boolean expression count &gt; 0 and total / count &gt; 0 contain a potential error? If so, what is it?
    8·1 answer
  • QUESTION 2 of 10: New shoes are on SALE. You find a pair you like for $85 dollars. But you only have $45 with you. So, you pay $
    13·1 answer
  • Identify the correct language concept or term from the drop-down menu. A Programming Language is a language that physically runs
    12·2 answers
  • The computer component that makes sure that instructions are decoded and executed properly is the ___________.
    11·2 answers
  • For his class project, Matt has to create an image in a color scheme that has shade or tint variations of the same hue. Which co
    7·1 answer
  • Design an application for Bob's E-Z Loans. The application accepts a client's loan amount and monthly payment amount. Output the
    8·1 answer
  • Krista needs to configure the default paste options in PowerPoint 2016. Which area of the Options dialog box will she need to us
    14·1 answer
  • Write a program using integers userNum and x as input, and output userNum divided by x four times. Ex: If the input is 2000 2, t
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!