A database designer wants to create three tables: Supplier, Product, and Country. The Supplier table has a Countryld column with values that must appear in the Country table's Countryld column. The Product table has an auto-increment column.
Which table's CREATE TABLE statement(s) must specify a FOREIGN KEY?
a. Supplier
b. Product
c. Country
d. Supplier and Country
Answer:
(a) Supplier
Explanation:
In database design, two tables are linked together using a FOREIGN KEY. A foreign key is formed from one or more columns of one table that reference or match another key (often called a primary key) in another table. In other words, when a column or a combination of columns on one table points to a primary key of another table, the column(s) will specify the foreign key.
PS: A primary key is used to make each entry of a table unique.
In the given tables - Supplier, Product, Country - since the Supplier table has a column called CountryId referencing the CountryId column of the Country table, then CountryId is a primary key in Country table but a foreign key in Supplier table.
Therefore, the CREATE TABLE statement(s) of the Supplier table must specify a foreign key.
A database management system often reads and writes data in a database, and makes sure there is consistency and availability. The supplier table's CREATE TABLE statement(s) must specify a FOREIGN KEY.
The database system often guards data when a lot of transactions is taking place. it often hinders multiple transactions with the same data at the same time.The Select SQL statement does not alter any database data. A supplier database is made up of different list of service, product or materials providers who can meet orders quickly.
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// This pseudocode segment is intended to compute and display
// the average grade of three tests for any number of students.
// The program executes until the user enters a negative value
// for the first test score.
start
Declarations
num test1
num test2
num test3
num average
housekeeping()
while test1 >= 0
mainLoop()
endwhile
endOfJob()
stop
housekeeping()
output "Enter score for test 1 or a negative number to quit"
return
mainLoop()
output "Enter score for test 2"
input test2
average = (test1 + test2 + test3) / 3
output "Average is ", average
output "Enter score for test 1 or a negative number to quit"
input tesst1
return
endOfJob()
output "End of program"
return
The pseudocode to calculate the average of the test scores until the user enters a negative input serves as a prototype of the actual program
The errors in the pseudocodeThe errors in the pseudocode include:
Inclusion of unusable segmentsIncorrect variablesIncorrect loopsThe correct pseudocodeThe correct pseudocode where all errors are corrected and the unusable segments are removed is as follows:
start
Declarations
num test1
num test2
num test3
num average
output "Enter score for test 1 or a negative number to quit"
input test1
while test1 >= 0
output "Enter score for test 2"
input test2
output "Enter score for test 3"
input test3
average = (test1 + test2 + test3) / 3
output "Average is ", average
output "Enter score for test 1 or a negative number to quit"
input test1
endwhile
output "End of program"
stop
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Multimedia Presentation: Mastery Test
Select the correct answer.
Helen wants to use actual voice testimonials of happy employees from her company in her presentation. What is the best way for her to use these
testimonials in the presentation?
OA. She can provide a link in her presentation where the audience can listen to the testimonials.
She can ask the employees to write down their thoughts for the presentation.
She can record the testimonials directly in her presentation.
D. She can read out the testimonials from a transcript.
B.
O C.
Reset
>
Next
The best way for Helen to use actual voice testimonials of happy employees from her company in her presentation is A) She can provide a link in her presentation where the audience can listen to the testimonials.
Using actual voice testimonials adds authenticity and credibility to Helen's presentation.
By providing a link, she allows the audience to directly hear the employees' voices and genuine expressions of satisfaction.
This approach has several advantages:
1)Audio Engagement: Listening to the testimonials in the employees' own voices creates a more engaging experience for the audience.
The tone, emotions, and enthusiasm conveyed through voice can have a powerful impact, making the testimonials more relatable and persuasive.
2)Employee Representation: By including actual voice testimonials, Helen gives her colleagues an opportunity to have their voices heard and to share their positive experiences.
This approach emphasizes the importance of employee perspectives and allows them to become active participants in the presentation.
3)Convenience and Accessibility: Providing a link allows the audience to access the testimonials at their own convenience.
They can listen to the testimonials during or after the presentation, depending on their preferences.
It also allows for easy sharing and revisiting of the testimonials.
4)Time Management: Including voice testimonials via a link enables Helen to efficiently manage the timing of her presentation.
She can allocate the appropriate time for other aspects of her talk while still giving the audience access to the full testimonials, without the need to rush or omit important information.
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I
Moving to another question will save this response
uestion 1
A field in the logical design of a database corresponds to a row in the physical table of a relational database.
O True
O False
Moving to another question will save this response
Type here to search
o
Answer:
False.
Explanation:
A database management system (DBMS) can be defined as a collection of software applications that typically enables computer users to create, store, modify, retrieve and manage data or informations in a database. Generally, it allows computer users to efficiently retrieve and manage their data with an appropriate level of security.
A data dictionary can be defined as a centralized collection of information on a specific data such as attributes, names, fields and definitions that are being used in a computer database system.
This ultimately implies that, a data dictionary found in a computer database system typically contains the records about all the data elements (objects) such as data relationships with other elements, ownership, type, size, primary keys etc. This records are stored and communicated to other data when required or needed.
In database management, the term "schema" is used to denote a representation of data.
A database schema is a structure which is typically used to represent the logical design of the database and as such represents how data are stored or organized and the relationships existing in a database management system. There are two (2) main categories of a database schema; physical database schema and logical database schema.
A relational database can be defined as a type of database that is structured in a manner that there exists a relationship between its elements.
In the physical table of a relational database, a record used in the logical design of a database corresponds to a row.
Is Conflict Healthy ?
yes
Explanation:
because it has more things
NO THIS ISNT ANY HOMEWORK!
Does anyone know a laptop under $200 that can run Minecraft Java edition and maybe 60fps?
PLEASE NAME A SPECIFIC ONE not to be rude but please don’t waste my time!
Sorry if I’m asking for too much we’re gonna travel soon and it’s gonna be for long months and I can’t bring my entire set up but I also don’t have much money and I can’t find any laptop like that so if you can help? Thank you!
Answer:
Name CPU, GPU & RAM My Rating (Out of 10)
HP Pavilion 15 Intel Core i7-8565U Nvidia MX 250 16GB 8.1
Asus VivoBook S15 Intel Core i5-8265U Nvidia MX250 8GB 7.8
Dell Inspiron 15 Intel Core i5-8250U Intel HD Graphics 16GB 7.6
Acer Aspire 5 Intel Core i5-8265U Nvidia MX250 8GB 7.5
Explanation:
I dont know the prices, I just searched it, though I will look into it more
Answer:
dont know the price but my mom bought me a macbook pro 13 inch and it works great !
Explanation:
edit: oop lol its like 1200 dollars
What is a half note + a 8th note in band? plz helppp
Answer:
A half note is a note that lasts two quarter notes. For most songs, it does last half a measure, but this is not always the case. An 8th note is a note that lasts half of a quarter note, and is usually (but again not always) an 8th of a measure. A quarter note is the most common type of note in a measure.
If you want to find out what exactly that stuff means, well, you're out of luck here, but it's probably better to just look that up anyways.
Pat is asked to automate critical security functions like responding to detected threat patterns in an enterprise network. Which of the following should be done by Pat?
a. Use virtual desktop infrastructure
b. Use software-device visibility
c. Implement subnetting
d. Use a software-device network
The option to be done by Pat is to Use a software-device network.
What is Software-device networking?Software device networking is known to be a kind of technology approach to a network management.
It is one that helps to have a dynamic, programmatically efficient type of network configuration so that one can have a better network performance and monitoring.
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When computing the complexity of an iterative algorithm with an outer loop and an inner loop, we solve _?_
The complexity is typically expressed using Big O notation,
The complexity of an iterative algorithm with an outer loop and an inner loop is determined by analyzing the nested loop complexity.
This involves identifying how many times the inner loop executes for each iteration of the outer loop. By carefully examining the number of iterations and operations within the loops, we can calculate the algorithm's overall time complexity.
Big O notation is commonly used to express the complexity of an algorithm. It provides an upper bound on the algorithm's time complexity as a function of the input size. By analyzing the growth rate of the algorithm's runtime with respect to the input, Big O notation helps us understand how the algorithm scales and how it performs for larger inputs.
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SIDE Name Smith Jones Doe Fid # 302 302 542 222 Varda Carey Course # Name Henry Jackson Schuh Lerner 302 302 542 Year C# Fld # 223 222 Intro Prog Organic Chem Asian Hist Calculus Taught-By Relation Dept Position Prof Assist. Prof Assoc. Prof Assist. Prof Course Name Calculus 3.0 3.5 Math Math 4.0 0.5 Chem Hist Student Relation Dept Math Hist Chem Dept Math CS Chem Hist Math Sid# Faculty Relation Enrolled Relation ARENEN Course Relation 302 302 302 223 Dept Math Math CS CS Chem Hist Math 1. For the top 3 tables, identify the primary key and the foreign key(s). if the table does not have a primary or foreign key, write NONE, then explain your answer
Table 1: SIDE
Primary Key: Sid#
Foreign Key(s): None
Table 2: Course
Primary Key: C#
Foreign Key(s): None
Table 3: Faculty
Primary Key: Fid#
Foreign Key(s): None
Table 4: Enrolled
Primary Key: NONE
Foreign Key(s): Sid#, C#
Table 5: Relation
Primary Key: NONE
Foreign Key(s): Sid#, Fid#, C#
In Table 1, the primary key is Sid#, which uniquely identifies each student. There are no foreign keys in this table because it stands alone and does not reference any other tables.
In Table 2, the primary key is C#, which uniquely identifies each course. There are no foreign keys in this table because it also stands alone and does not reference any other tables.
In Table 3, the primary key is Fid#, which uniquely identifies each faculty member. There are no foreign keys in this table because it also stands alone and does not reference any other tables.
In Table 4, there is no primary key because it is a linking table that connects students (referenced by Sid#) to courses (referenced by C#). The foreign keys in this table are Sid# and C#, which reference the primary keys in Tables 1 and 2, respectively.
In Table 5, there is no primary key because it is also a linking table that connects students (referenced by Sid#) to faculty members (referenced by Fid#) for specific courses (referenced by C#). The foreign keys in this table are Sid#, Fid#, and C#, which reference the primary keys in Tables 1, 3, and 2, respectively.
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write a program to prompt for a score between 0.0 and 1.0. If the score is
out of range, print an error. If the score is between 0.0 and 1.0, print a grade
usmg the following table:
Score Grade
0.9 A
08 B
07
= 0.6 0
0.6
if the user enters a value out of range, print a suitable error message and exit.
For the test enter a score of 0.85.
Check Code
Reset Code
score = float(input("Enter Score: "))
message = "Score out of range"
if score >= 0.9:
message = "A"
elif score >= 0.8:
message = "B"
elif score >= 0.7:
message = "C"
elif score >= 0.6:
message = "D"
elif score < 0.6:
message = "F"
else:
message = "Out of Range"
print(message)
I hope this helps!
Write an application that combines several classes and interfaces.
Answer:
Explanation:
The following program is written in Java and it combines several classes and an interface in order to save different pet objects and their needed methods and specifications.
import java.util.Scanner;
interface Animal {
void animalSound(String sound);
void sleep(int time);
}
public class PetInformation {
public static void main(String[] args) {
Scanner scnr = new Scanner(System.in);
String petName, dogName;
String dogBreed = "null";
int petAge, dogAge;
Pet myPet = new Pet();
System.out.println("Enter Pet Name:");
petName = scnr.nextLine();
System.out.println("Enter Pet Age:");
petAge = scnr.nextInt();
Dog myDog = new Dog();
System.out.println("Enter Dog Name:");
dogName = scnr.next();
System.out.println("Enter Dog Age:");
dogAge = scnr.nextInt();
scnr.nextLine();
System.out.println("Enter Dog Breed:");
dogBreed = scnr.nextLine();
System.out.println(" ");
myPet.setName(petName);
myPet.setAge(petAge);
myPet.printInfo();
myDog.setName(dogName);
myDog.setAge(dogAge);
myDog.setBreed(dogBreed);
myDog.printInfo();
System.out.println(" Breed: " + myDog.getBreed());
}
}
class Pet implements Animal{
protected String petName;
protected int petAge;
public void setName(String userName) {
petName = userName;
}
public String getName() {
return petName;
}
public void setAge(int userAge) {
petAge = userAge;
}
public int getAge() {
return petAge;
}
public void printInfo() {
System.out.println("Pet Information: ");
System.out.println(" Name: " + petName);
System.out.println(" Age: " + petAge);
}
//The at (email symbol) goes before the Override keyword, Brainly detects it as a swearword and wont allow it
Override
public void animalSound(String sound) {
System.out.println(this.petName + " says: " + sound);
}
//The at (email symbol) goes before the Override keyword, Brainly detects it as a swearword and wont allow it
Override
public void sleep(int time) {
System.out.println(this.petName + " sleeps for " + time + "minutes");
}
}
class Dog extends Pet {
private String dogBreed;
public void setBreed(String userBreed) {
dogBreed = userBreed;
}
public String getBreed() {
return dogBreed;
}
}
. Write a program to calculate the square of 20 by using a loop
that adds 20 to the accumulator 20 times.
The program to calculate the square of 20 by using a loop
that adds 20 to the accumulator 20 times is given:
The Programaccumulator = 0
for _ in range(20):
accumulator += 20
square_of_20 = accumulator
print(square_of_20)
Algorithm:
Initialize an accumulator variable to 0.
Start a loop that iterates 20 times.
Inside the loop, add 20 to the accumulator.
After the loop, the accumulator will hold the square of 20.
Output the value of the accumulator (square of 20).
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working with the tkinter(python) library
make the window you create always appear on top of other windows. You can do this with lift() or root.attributes('-topmost', ...), but this does not apply to full-screen windows. What can i do?
To make a tkinter window always appear on top of other windows, including full-screen windows, you must use the wm_attributes method with the topmost attribute set to True.
How can I make a tkinter window always appear on top of other windows?By using the wm_attributes method in tkinter and setting the topmost attribute to True, you can ensure that your tkinter window stays on top of other windows, even when they are in full-screen mode.
This attribute allows you to maintain the window's visibility and prominence regardless of the current state of other windows on your screen.
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The Greater Than sign (>) is an example of
operator.
Answer:
logical
Explanation:
the greater than sign (>) is an example of logical operator.
A > sign asks if the first value is greater than the second value. That is, is the value or expression to the left of the > sign greater than the value or expression to the right side? For example, the statement (A > B) is true if A is greater than B
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Database systems are exposed to many attacks, including dictionary attack, show with implantation how dictionary attack is launched?(Java or Python) ?
A type of brute-force attack in which an intruder uses a "dictionary list" of common words and phrases used by businesses and individuals to attempt to crack password-protected databases.
What is a dictionary attack?
A Dictionary Attack is an attack vector used by an attacker to break into a password-protected system by using every word in a dictionary as a password for that system. This type of attack vector is a Brute Force Attack.
The dictionary can contain words from an English dictionary as well as a leaked list of commonly used passwords, which, when combined with common character replacement with numbers, can be very effective and fast at times.
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is it true that if the user log out the computer will turn off automatically
Answer:
Yes it is true
Explanation:
What is generation of compyter
Answer:
the change that computers go through
Explanation:
like 6 generation
Answer:
the phase wise development of computer on the basis of main components, their size, processing speed, system architecture etc used by them is g of com
how do unblock a school chromebook
If the formula in cell D49 is copied to cells E49:F49, what sequence of values would be generated in Cells D49:F49?
Conference Room Location Staff ID
D East 19106
C North 19122
A South 19107
E South 19104
B South 19147
=$D$44
Excel moves or copies a cell with formulas and their results, cell formats, and comments. When moving or copying a cell.
If there are certain cells, rows, or columns that do not appear on a worksheet, you can copy all cells.Otherwise, the visible cells. In adding to viewable cells, Excel copies cached or filtering cells per default.\(\bold{C \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ C \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ C}\)
The formulation in cell D49 is a stable formula that does not vary by cell type. Alt + F4 is the shortcut to fasten a form. Therefore, the formula given in D49 would achieve the same output when copied to another cell.Learn more:
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What suggestions might you give? Do you think it is okay to modify photos digitally to improve their appearance, or is that deceiving his customers? Why or why not?
If D3=30 and D4=20, what is the result of the function
=IF(D4 D3, D3-D4, "FULL")?
0-10
O Unknown
O 10
O Full
Answer:
c. 10
Explanation:
Given
\(D3 = 30\)
\(D4 = 20\)
Required
The result of: \(=IF(D4 < D3,D3-D4,"FULL")\)
First, the condition D4 < D3 is tested.
\(D4 < D3 = 20 < 30\)
Since 20 < 30, then:
\(D4 < D3 = True\)
The condition is true, so:
D3 - D4 will be executed.
\(D3 - D4 = 30 - 20\)
\(D3 - D4 = 10\)
Hence, the result of the function is 10
Please help me !!!!!!!
Answer:
Explanation:
CTRL+F
To open the Find pane from the Edit View, press Ctrl+F, or click Home > Find. Find text by typing it in the Search the document for… box. Word Web App starts searching as soon as you start typing
by applying styles formats are being applied ?
A. The same
B. Different
C. Various
D. Similar
Answer:
A
Explanation:
The same formats are being applied.
Answer:
A
Explanation:
Let's take the letters in a keyboard. If I were to type a document; there are several word format I can chose like Calibre, Times New Roman, Gothic etc. However for each word format I can make the words bold or italicized which are styles.
Question 6 of 10
In the MakeCode micro:bit reaction speed test program, what will the events
you include in the first step detect?
OA. The user's preferences
OB. The user's input
OC. The user's skill level
OD. The user's age
In the MakeCode micro:bit reaction speed test program, the events that you include in the first step would detect: B. The user's input.
What is the MakeCode micro:bit?In Computer technology, the MakeCode micro:bit can be defined as a programming software that is designed and developed by Microsoft Inc., in order to enable the measurement of a student’s reaction time and speed in completing a circuit path on a cardboard pad.
Additionally, the reaction time and speed of a student can be measured in both an undistracted and a distracted environment.
In order to take the measurement of a user's reaction speed, the first step is to prompt him or her to press the "A" button, which in this context can be categorized as an input from the end user to the MakeCode micro:bit.
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Why does virtual reality rely on slightly different views for each eye?
Answer:
So, you can have a whole view, if you cover your right eye, you can't really see anything to your right just towards your left.
Explanation:
Analyze the needs of the National Security team and help them articulate its problems, develop solutions to meet its needs, and deliver a recommendation that is aligned with the extant national objectives.
Answer:
Following are the solution to this question:
Explanation:
The Council's role has been to assist and support the President regarding national security and foreign policies ever since its inception under Truman. This Committee often acts as the primary arm of a President to organize these initiatives between government agencies.
The Leader holds sway over the NSC. Its Secretary Of Defense offers a range of options for the Administration on policy issues. The director of national intelligence helps prepare the administration's foreign travel, among other tasks, and offers context memos and staffing for the administration's discussions and phone interviews involving global leaders.
Safety investments were taken for many years utilizing threat cost-benefit analysis wherein the effect metric has been largely focused on even a risk reduction comparative estimate. To evaluate investment decisions, most aim to conduct similar analyses.
Even so, the potential threat is much harder to measure for high-security installations that potential hazard since the likelihood of an attack is highly uncertain and depends strongly on undefinable psychological factors like deterrence as well as the intensity of enemy goals.
_____________ is driving a complete reanalysis of what information is collected and how it is presented, navigated, and used internally.
Which command would you use to replace all the Os and 1s in a spreadsheet
with As and Bs?
A. Alt + E
B. Alt + Tab
C. Ctrl + X (or Cmd + X on a Mac)
OD. Ctrl + F (or Cmd + F on a Mac)
The correct command to replace all the Os and 1s in a spreadsheet with As and Bs is: D. Ctrl + F (or Cmd + F on a Mac)
What is the command?The Ctrl + F (or Cmd + F on a Mac) command is usually used to open the "Find and Replace" talk snare miscellaneous requests, including computer program programs like Microsoft Excel or G/o/o/gle Sheets.
The "Find and Replace" talk box supports a available habit to follow distinguishing quotation or principles inside a spreadsheet and change ruling class accompanying various manual or principles.
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Demonstrate understanding of different number conversion techniques between data types (at least 2).
To carry out number conversion,
Step 1: Divide the decimal number to be converted by the new base value. Step 2 Take the residual from Step 1 and use it as the rightmost (least significant) digit of the new base number. Step 3: Divide the previous divide's quotient by the new base.
What is number conversion?As we all know, the number system is a method of representing numbers. In number system conversion, we will learn how to convert a number from one base to another.
There are other number systems that may be used, including binary numbers, decimal numbers, hexadecimal numbers, and octal numbers.
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