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Mamont248 [21]
3 years ago
13

a particular variety of database that works by connecting tables to each other. It is the most popular form of database and the

type we will discuss most in this class.
Computers and Technology
1 answer:
NeTakaya3 years ago
3 0

Answer:

Relational Database      

Explanation:

  • Relational Database is the type of database in which data is stored and presented in the form of tables and it is used to access, manipulate and manage data.
  • Table is also called a relation. It consists of rows and columns where rows represent a record of data and columns represent the attributes of the data.
  • Every table has a primary key which uniquely identifies a row in a table and a foreign key is used to establish relationships among tables.
  • In relational database domain is used to define specify the possible values that an attribute can have.
  • Constraints can also be applied to the values of the attributes in the table.
  • There are many advantages of a relational database.
  • It can organize and manage bulk of information.
  • It is easy to add or delete data in the relational database according to the change in requirements.
  • Relational database ensures the consistency and integrity of data when many users obtain the same database at same time by using concurrency control methods.
  • It ensures security by limiting access rights to the data.
  • It also eliminates data redundancy and dependency using normalization technique which ensures data integrity and accuracy.
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To download a webpage, the web browser copies files and transfer them to your ____
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Computer is your best answer.


If you download the files, they will show up either on your computer home screen, or in the 'downloads' section of your computer files.



hope this helps

7 0
4 years ago
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What is the topic of the e-mail? what is the purpose of the e-mail?
const2013 [10]

Answer:

What email are you talking about?

7 0
2 years ago
Which of the following are screen objects used to maintain, view, and print data from a database
amid [387]

Answer:

The correct answer to the following question will be "A spreadsheet".

Explanation:

  • A spreadsheet is a software device used to access and stores data from such a database. The interaction between separate entities (in separate tables) is controlled by their specific columns.
  • It's a programming program for arranging, evaluating and storing data in tabular format.
  • The spreadsheets have been developed as computer-controlled analogs to paper reporting worksheets. The system runs on data decided to enter in table cells.

Therefore, a Spreadsheet is the right answer.

8 0
3 years ago
Jasmine is writing a shopping app. She has created a variable to keep track of the number of items in the shopping cart. Everyti
Gemiola [76]

Answer:

b. cart total + 1

Explanation:

A. cart total=1 do increment the total with every 1 click here, it only 're-assigns cart total with value 1 for every click, hence it's always 1.

B. In every click, 1 is always added to the previous value of cart total, like addItemButton(cart total+1) or so.

C. This would have worked too if "cart total" and "cartTotal" where of same type.

D. cart total is just being initially defined here.

E. Likewise here, var shows that cart total has just only been declared.

6 0
3 years ago
If a user's input string matches a known text message abbreviation, output the unabbreviated form, else output: Unknown. Support
Molodets [167]

Answer:

Here is the JAVA program. I  have added a few more abbreviations apart from LOL and IDK.

import java.util.Scanner; // to take input from user

public class MessageAbbreviation {

public static void main(String[] args) { //start of main() function body

   Scanner input = new Scanner(System.in); // create object of Scanner

       String abbreviation= ""; //stores the text message abbreviation

/* In the following lines the abbreviation string type variables contain the un-abbreviated forms */

           String LOL = "laughing out loud";

           String IDK = "i don't know";

           String BFF = "best friends forever";

           String IMHO = "in my humble opinion";

           String TMI = "too much information";

           String TYT = "take your time";

           String IDC = "I don't care";

           String FYI = "for your information";

           String BTW = "by the way";

           String OMG = "oh my God";

//prompts the user to enter an abbreviation for example LOL

           System.out.println("Input an abbreviation:" + " ");

           if(input.hasNext()) { // reads the abbreviation form the user

           abbreviation= input.next(); }

// scans and reads the abbreviation from user in the abbreviation variable

/*switch statement checks the input abbreviation with the cases and prints the un abbreviated form in output accordingly. */

    switch(abbreviation) {

       case "LOL" : System.out.println(LOL);

                    break;

       case "IDK" : System.out.println(IDK);

                    break;

       case "BFF" : System.out.println(BFF);

                    break;

       case "IMHO": System.out.println(IMHO);

                     break;

       case "TMI": System.out.println(TMI);

                     break;

       case "TYT": System.out.println(TYT);

                     break;

       case "IDC": System.out.println(IDC);

                     break;

       case "FYI": System.out.println(FYI);

                     break;

       case "BTW": System.out.println(BTW);

                     break;

       case "OMG": System.out.println(OMG);

                     break;

                     

       default    : System.out.println("Unknown"); } } }

Explanation:

The program first prompts the user to enter an abbreviation. Lets say the user enters LOL. Now the switch statement has some cases which are the conditions that are checked against the input abbreviation. For example if the user enters LOL then the following statement is executed:

case "LOL" : System.out.println(LOL);

This means if the case is LOL then the message ( un abbreviated form) stored in the LOL variable is displayed on output screen So the output is laughing out loud.

Anything else entered other than the given abbreviations will display the message: Unknown

The output is attached as screen shot.

5 0
3 years ago
Read 2 more answers
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