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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.

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If you want more blank white space around the text in a document, you should increase the ____________.
Hatshy [7]

If you want more blank white space around the text in a document, you should increase the margin.  Correct answer: B

The margin is the area between the main content of a page (in this case that is the text) and the page edges. One-inch page margin is set automatically around each page. However,  you can customize or choose predefined margin settings.

3 0
2 years ago
Read 2 more answers
. Write a statement that throws an IllgalArgumentException with the error message Argument cannot be negative.
dybincka [34]

Answer:

public class PostAccount

{

  public void withdraw(float savings)

  {

     if (savings >=0 )

     {

        IllegalArgumentException exception

              = new IllegalArgumentException("Savings cannot be negative");

        throw exception;

     }

     balance = savings - withdraw;

  }

 }

Explanation:

IllgalArgumentException is a type of NumberFormatException  of runtime exception. Here in the program we have created an object of IllgalArgumentException class and after that we have thrown the error to show the condition if it does not satisfy the if condition.

8 0
1 year ago
If a program repeatedly shows separate feature branches rather than a true System Demo, which practice should be reviewed to add
Alenkinab [10]

Answer:

Continuous Integration tool is used to address the issue of separate features branch of program.

Explanation:

Continuous integration process comprise of three main objectives such as improvement, delivery and development of the software. In contentious integration tool all the people  three objective specialist are work together to make program better.

Continuous integration is a platform that is used to detect the problems in a code that need to be corrected. The code is store in the repository of the tool that needs correction. The reviewers review the code in different portions of the code and identify and resolve the problem. There are multiple contributors to correct the code.

8 0
1 year ago
How do I open the Excel workbook "Revenue.xls" from the default directory?
Kobotan [32]
<span>Follow the following steps to open "Revenue.xls":

Step 1:
Open Microsoft Excel.

Step 2:
Click on the "File" button (at top left).

Step 3:
When you click on the File button, the list will pop up which will contain the option "Open."
Click "Open".

Step 4:
Now select the "Revenue.xls" file and open it!

That's it! :)</span>
4 0
1 year ago
based on the transcript, what did broadcasting the story through the medium of radio allow welles to do?
tamaranim1 [39]

Answer:

It was Halloween morning, in 1938, Orson Welles opened his eyes just to discover himself as the most trending person in the USA. Just the past night, Welles together with his Mercury Theatre performed the radio adaption of the Wars of the Worlds, written by H.G. Wells. He transformed around 40 years old novel into the false news edition which broadcasted the news of Martian attack on New Jersey.

Explanation:

It was Halloween morning, in 1938, Orson Welles opened his eyes just to discover himself as the most trending person in the USA. Just the past night, Welles together with his Mercury Theater performed the radio adaption of the Wars of the Worlds, written by H.G. Wells. He transformed around 40 years old novel into the false news edition which broadcasted the news of Martian attack on New Jersey. Just previously it was Halloween night, and hence, this was expected. And various listeners of the show were shocked, and they made a lot of crazy calls to the nearby Police Stations, as well as the newspaper publication houses. The radio stations tried to convince various journalists that the radio episode was able to cause hysteria throughout the USA. And by the very next dawn, the front column of each new newspaper from coast to coast together with the headlines related to the huge panic inspired allegedly by the CBS broadcast.

8 0
1 year ago
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