1answer.
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
Yanka [14]
3 years ago
9

Describe how you would define the relation Brother-in-Law whose tuples have the form (x, y) with x being the brother-in-law of y

. b. Give appropriate relational algebra and SQL expressions that return the relation Brother-in-Law.
Computers and Technology
1 answer:
damaskus [11]3 years ago
8 0

Answer:

The expression is :

π[cd) + π(g,h) ],[π(e,f)+π(a,b)])

We will use foreign key and primary key

You might be interested in
While inspecting an element in the DOM on my website using the Chrome Devtools I accidentally deleted the DIV that had all my au
Kobotan [32]

Answer:

Refresh the page, it will reset all the underlying code.

Explanation:

Inspecting an element is essential for web developers in building websites faster and better. The Chrome DevTools is a powerful tool that is integrated into the Chrome browser to assist developers in on-the-go website troubleshooting.

Editing codes in the Chrome DevTools console does not affect the source code of the website hosted on a server, it just provides instant editing functions for troubleshooting or website enhancement.

Therefore, refreshing the page, re-loads the website again from its database which will show the unedited website. In our scenario, after refreshing the page, all the deleted DIV that contains all the authentication will reappear again.

4 0
2 years ago
Alexis received paychecks from both her jobs and she would like to deposit them. One check is for $62.88 and the other is $523.2
Karolina [17]

Answer:

something :}

Explanation:

have a good day

8 0
2 years ago
FTP is commonly used to __________ and __________ files to a server.
Aleks [24]

Answer:

upload; download

Explanation:

FTP (File Transfer Protocol) is an internet protocol used to upload and download a file to a server, there are some programs help us to transfer this data to a server, in some cases, we're going to need these programs to upload website files to the server like images or videos, or some websites where do you need a user and passwords to upload file by FTP

8 0
3 years ago
A ________ -tier design includes a middle layer between the client and server that processes the client requests and translates
Vanyuwa [196]

Answer:

Three.

Explanation:

5 0
3 years ago
PLEASE HELP ASAP (answer is needed in Java) 70 POINTS
8_murik_8 [283]

import java.util.Scanner;

public class MyClass1 {

   public static void main(String args[]) {

     Scanner scan = new Scanner(System.in);

     int smallest = 0, largest = 0, num, count = 0;

     while (true){

         System.out.println("Enter a number (-1 to quit): ");

         num = scan.nextInt();

         if (num == -1){

             System.exit(0);

         }

         else if (num < 0){

             System.out.println("Please enter a positive number!");

         }

         else{

             if (num > largest){

                 largest = num;

                 

             }

             if (num < smallest || count == 0){

                 smallest = num;

                 count++;

             }

             System.out.println("Smallest # so far: "+smallest);

             System.out.println("Largest # so far: "+largest);

         }

     }

   }

}

I hope this helps! If you have any other questions, I'll do my best to answer them.

6 0
3 years ago
Other questions:
  • While engineers work to create computers that can understand us emotionally, ________ are also evolving toward a more human appe
    12·1 answer
  • Select all that apply.
    15·2 answers
  • . char values are surrounded by _____ quotes
    15·1 answer
  • Write a program to read data from a file named problem 2. ext. This file has three exams data (floating point data) in three col
    11·1 answer
  • How is this fictional tex in the people could fly different from the nonfictional text​
    12·2 answers
  • What’s an example of software?
    6·2 answers
  • Different between desktop application and web application ?​
    9·1 answer
  • What tool can you use to discover vulnerabilities or dangerous misconfigurations on your systems and network
    5·1 answer
  • The way a student prepares for a test or reviews academic material is referred to as
    8·2 answers
  • Write a flowchart and C code for a program that does the following: Uses a do...while loop. Prints the numbers from 1 to 10 with
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!