optional attributes and relationships become columns that allow for _____ values.

Answers

Answer 1

Optional attributes and relationships become columns that allow for nullable values.

This means that a row in the database table can have a null value for that particular attribute or relationship. Nullable columns are important because not all entities will have values for all attributes or relationships. For example, a customer entity may not have a value for the "fax number" attribute, or a product entity may not have a value for the "supplier" relationship. Without nullable columns, these entities would not be able to be properly represented in the database. Nullable columns also allow for flexibility in data entry and querying, as they allow for the possibility of missing or unknown data.

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Related Questions

6. A presentation is widely used to present and effectively​

Answers

Answer:

A Presentation is a collection of slides arranged in a systematic order. 2) A presentation ...

Explanation:

Please give thanks to all my answers and please mark as brilliant and please follow me

Which finger is used to press SHIFT key while typing!
A. Little finger
B. Thumb
C. Index finger
D. Ring Finger ​

Answers

Answer:

Little Finger (A)

Explanation:

it would be A. little finger i’m pretty sure

3 uses for a GPS system other than for a satellite navigation system

Answers

Answer:

Location – determining a position. Navigation getting from one location to another. Tracking – monitoring object or a personal movement. Mapping – creating maps of the world.

Need help ASAP

Thankss + BRAINLIST only for correct answers

Answers

Why visit it?
For entertainment, purely for the user to enjoy the content that has been produced for them.

Why was it made?
Netflix is a subscription based service that has been made to allow users to stream TV shows and other entertainment sources. It was made for leisure.

what is a defult? pls help if you wouldn't mind

Answers

Answer:

a beginner or a novice

Explanation:

failure to fulfill an obligation, especially to repay a loan or appear in a court of law.

Enumerate the steps on how to set-up the CD-ROM as the first boot device.​

Answers

Answer:

Explanation:

1)Press boot key ( Del or specified key)

to enter BIOS setup utility.

2) using the direction keys, make selection of "Advanced BIOS Features"

3)then access Advanced BIOS setting by pressing Enter key

4. Using up/ down arrow keys Select "First Boot

Device"

.

5) Using up and down keys, select "CD-ROM "

6. go back to "BIOS setting screen" by Pressing ESC key

7. Select " Save & Exit Setup"

.

PLEASE HELP ITS TIMED Ishmael would like to capture a selected portion of his screen and then capture actions he performs on that selected portion. What should he do?


Use the Video from My PC command.

Use the Insert Screen Recording control.

Create a poster frame.

Use an embed code.

Answers

Answer:

Option B

Hope this Helps!!! :)

Choose all items that are true about the two example of HTML shown on the right.

Example 1 will display differently than example 2 in a web browser.

They are styled differently, but will look the same in a web browser.

Example 2 is easier to analyze and repair.

The styling in example 2 is required by modern web browsers.

Answers

Answer:

2

Explanation:

Answer:

B and C

Explanation:

Could someone please help?​

Answers

Answer:

it looks difficult

Explanation:

you can devotingly solve it

PLS HELP ASAP suppose you want to find pages that contain the word German but not the word shepherd. which search would achieve this?
German OR shepherd
German- shepherd
"GERMAN shepherd"
"German"+"shepherd"

Answers

Answer: German- shepherd

Explanation:

If I want to find pages that contain the word German but not the word shepherd, the search would achieve this would be German- shepherd.

It should be noted that other options such as German OR shepherd, "GERMAN shepherd" and "German"+"shepherd" all mean that pages containing the words German and also shepherd will be found.

The (-) sign simply means that not. Therefore, the correct option is German - shepherd which means German but not shepherd.

Answer:

German- shepherd

Explanation:

In French class, Blue puts on a visor and the environment changes to that of a café in Paris. Which of the following terms describes this kind of technology?

Answers

Answer:

virtual reality

Explanation:

Answer:

virtual

Explanation:

virtual and realyty

What percentage of teens say they have witnessed cyberbullying?

50

95

70

35

Answers

A Majority of Teens Have Experienced Some Form of Cyberbullying. 59% of U.S. teens have been bullied or harassed online, and a similar share says it's a major problem for people their age

254 × (×) igual 20×()682883993

___________ is a computer programming language.

Answers

Python!!! I hope that helped!!
Pascal, c+, c++ etc

What are some other projects or things you do in your life (other than writing an essay) where you use an iterative process?

Answers

Answer:The iterative design process occurs in a continuous cycle involving three unique stages: formulate, test, evaluate. These core elements make up the basic progression in which the development of a game will follow. The rest is simply rinse and repeat

Explanation:

Answer:

Coke has experimented with different formulations of its popular Coca Cola product, including the failed New Coke iteration. The aim is to achieve the best tasting product that customers like.

A company that is operating a factory or assembly line may experiment with different methods of arranging the assembly line or with different production methods. Each time the production process is changed, this is a different iteration. Each time the order of operations and procedures are changed, this is a different iteration. The goal is to achieve the fastest, best and most optimal method of creating a product.

A musician may start with one version of a song and refine it, making changes to a note here and there or changing the tempo and speed. Many different iterations of a song may be created this way until the optimal finished product has been created that sounds and works the best.

A cook may experiment with a recipe, tweaking the ingredients or changing different steps of the process slightly until the food tastes as good as it possibly can.

Microsoft has released multiple versions of the Windows operating system to add functionality for users and to correct bugs. Each different version is a different iteration of its operating system and the goal is for the next iteration to be better than the last.

Explanation:

Pick an example, and put it in your own words.

What line of code would you edit if you wanted a bigger sprite?This is computer science.Pick branliest if right


A.3

B.4

C.5

D.You have to edit the picture itself

Answers

pretty sure the answer is a-3

Answer:

C. 5

Explanation:

Line 3 refers to the positioning of the sprite.

Line 4 refers to the animation preset of the sprite.

Line 5 is the correct choice because in the code it references scale and a value which can be modified to make the sprite bigger. For example, from 0.3 to 0.5

If I'm right please give brainliest, thanks

When you click on what will happen?

The font will change back to the default setting.
The document will change back to the last time you saved it.
The last step will be undone.
The last step will be redone.

Answers

The last step is undone. The default font choices in Microsoft Word are one of the biggest sources of ongoing annoyance for legal users.

What is Default setting?

you can alter just two Styles (+Body and +Headings) permanently to give your papers a more professional typography.

There is a drop-down menu labeled Fonts over to the far right. You can view a list of preconfigured font sets by clicking on Fonts. You want to select Customize Fonts from here.

You can see the Body font and the Heading font on the left. Here is where you control the two Styles, +Body and +Headings, that I mentioned previously.

Therefore, The last step is undone.

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Answer: C The last step will be undone. this is the Undo Icon

Explanation:

Frida has been given the task of creating a database to store all her company's records and sales records. She is going to produce a relational database. The customers records will have the fields Customer_id, Name, Contact_Phone, and card Number. The sales records will have the fields Invoice_number, Item_number, Item_description, Item_cost and Customer_ref.

Complete the diagram below to show how the tables will be combined.

Answers

Answer:

A value that's used to identify a record from a linked table is called a ______. ... A database administrator is setting up a new table that will contain customer ... The fields include name, address, company, phone, email, and customer ID. ... Gina does not know how to write SQL commands and no forms have been created.

Explanation:

1. ¿Dónde emergieron los Bancos Centrales? 2. ¿En qué siglo los Bancos Centrales se potenciaron? 3. ¿El Banco de Suecia en qué siglo fue fundado? 4. ¿En el año de 1694 qué Banco se creó? 5. ¿Quién creo en 1800 el Banco Francés? 6. ¿En qué siglo y años Estados Unidos creó el Banco Estados Unidos? 7. Entre 1861 -1865 Abraham Lincoln creo el primer Banco y único Banco Central ¿Cuál erasu objetivo? 8. ¿Cuál otras funciones cumplían los Bancos en el siglo XIX?

Answers

Answer:

. ¿Dónde emergieron los Bancos Centrales?

El primer banco central fue creado por el Parlamento Sueco en 1668, siendo su principal acreedor la Corona Sueca. Esto generó inflación y crisis financieras. Después de un siglo, en 1779, la ley fue modificada, obligando al Banco a que la masa monetaria fuese respaldada por oro en una proporción fija. Sin embargo, comenzó la guerra con Rusia y se regresó a su origen violando el precepto de estabilidad que confería ese patrón oro.

2. ¿En qué siglo los Bancos Centrales se potenciaron?

La historia de la banca central se remonta al menos al siglo XVII, con la fundación de la primera institución reconocida como un banco central, el Banco de Suecia.

3. ¿El Banco de Suecia en qué siglo fue fundado?

El primer banco central fue creado por el Parlamento Sueco en 1668.

4. ¿En el año de 1694 qué Banco se creó?

En 1694, se creó el Banco de Inglaterra, que sería el más famoso banco central durante casi 300 años.

5. ¿Quién creo en 1800 el Banco Francés?

Fue creado por Napoleón en 1800 para estabilizar la moneda después de la hiperinflación del papel moneda generado durante la Revolución Francesa y las conquistas napoleónicas.

6. ¿En qué siglo y años Estados Unidos creó el Banco Estados Unidos?

A principios del siglo XIX, Estados Unidos creó el Banco de los Estados Unidos (1791-1811) y luego un segundo Banco de los Estados Unidos (1816-1836) tras el cierre del primero. Ambos bancos se establecieron siguiendo el modelo del Banco de Inglaterra. Pero a diferencia de los británicos, los estadounidenses tuvieron una desconfianza profunda de cualquier concentración de poder financiero en general, y de los bancos centrales, en particular.

7. Entre 1861 -1865 Abraham Lincoln creo el primer Banco y único Banco Central ¿Cuál erasu objetivo?

Abraham Lincoln creó el primer y único Banco Central público del país, con el objetivo de garantizar los pagos de guerra.

8. ¿Cuál otras funciones cumplían los Bancos en el siglo XIX?

Se exigió la creación de una estructura crediticia flexible que fuera capaz de dar respuestas a las empresas de ferrocarril y a los barcos de vapor,

Explanation:

. ¿Dónde emergieron los Bancos Centrales?

El primer banco central fue creado por el Parlamento Sueco en 1668, siendo su principal acreedor la Corona Sueca. Esto generó inflación y crisis financieras. Después de un siglo, en 1779, la ley fue modificada, obligando al Banco a que la masa monetaria fuese respaldada por oro en una proporción fija. Sin embargo, comenzó la guerra con Rusia y se regresó a su origen violando el precepto de estabilidad que confería ese patrón oro.

2. ¿En qué siglo los Bancos Centrales se potenciaron?

La historia de la banca central se remonta al menos al siglo XVII, con la fundación de la primera institución reconocida como un banco central, el Banco de Suecia.

3. ¿El Banco de Suecia en qué siglo fue fundado?

El primer banco central fue creado por el Parlamento Sueco en 1668.

4. ¿En el año de 1694 qué Banco se creó?

En 1694, se creó el Banco de Inglaterra, que sería el más famoso banco central durante casi 300 años.

5. ¿Quién creo en 1800 el Banco Francés?

Fue creado por Napoleón en 1800 para estabilizar la moneda después de la hiperinflación del papel moneda generado durante la Revolución Francesa y las conquistas napoleónicas.

6. ¿En qué siglo y años Estados Unidos creó el Banco Estados Unidos?

A principios del siglo XIX, Estados Unidos creó el Banco de los Estados Unidos (1791-1811) y luego un segundo Banco de los Estados Unidos (1816-1836) tras el cierre del primero. Ambos bancos se establecieron siguiendo el modelo del Banco de Inglaterra. Pero a diferencia de los británicos, los estadounidenses tuvieron una desconfianza profunda de cualquier concentración de poder financiero en general, y de los bancos centrales, en particular.

7. Entre 1861 -1865 Abraham Lincoln creo el primer Banco y único Banco Central ¿Cuál erasu objetivo?

Abraham Lincoln creó el primer y único Banco Central público del país, con el objetivo de garantizar los pagos de guerra.

8. ¿Cuál otras funciones cumplían los Bancos en el siglo XIX?

Se exigió la creación de una estructura crediticia flexible que fuera capaz de dar respuestas a las empresas de ferrocarril y a los barcos de vapor,

Find the cost of 2m 20cm at 25p per metre​

Answers

Answer: 55 meters.

Explanation:

First convert the 20 cm to meters so the entire number is in meters.

1 meter = 100 cm

20 in cm is:

= 20/100

= 0.2 meters.

2.2 meters.

One meter costs 25p so 2.2 meters will cost:

= 2.2 * 25

= 55 meters


What is programming?​

Answers

Answer:

using code etc to change how something works out make it work how you want it to. mostly code but sometimes circuit boards and stuff like that.

Explanation:

see above

Answer:

Programming is the process of creating a set of instructions that tell a computer how to perform a task.

WHAT IS MULTIMEDIA SUPPOSED TO MEAN ???

Answers

Answer:

using more than one medium of expression or communication

Answer:

It basically means using more than one expression or form of communication

Explanation:

If someone said to you, “Pseudocode is a waste of time! It’s just more work because you end up writing the same program twice,” how would you explain the benefits of pseudocode?

Answers

Answer:

It allows the designer to focus on main logic without being distracted by programming languages syntax.

* Since it is language independent, it can be translated to any computer language code.

* It allows designer to express logic in plain natural language.

* It is easier to write actual code using pseudocode.

* Unlike algorithms, pseudocodes are concise so pseudocodes are more readable and easier to modify.

Explanation:

I need help writing the algorithm I know how to do the flow chart for the first one but I’m not sure if the second question is a for loop

Answers

Answer:

The algorithm is as follows:

(a) Sales and commission

1. Start

2. Input Sales

3. Commission = 0.30 * Sales

3. If sales >= 4000.00 then

3.1   Commission = 0.60 * Sales

4. End If

5. Print Commission

6. Stop

(b) Amount of Rainfall

1. Start

2. Days = 1

3. Total = 0.0

4. While Days <= 31

4.1. Input Rainfall

4.2. Total = Total + Rainfall

4.3. Days = Days + 1

4.4. End If

5. Print Total

6. Stop

See attachment for flowchart

Explanation:

(a) Sales and commission

This begins the algorithm

1. Start

This gets sales from the user

2. Input Sales

This calculates the commission based on 30% (i.e. for sales < 4000)

3. Commission = 0.30 * Sales

This checks if sales is greater than or equal to 4000

3. If sales >= 4000.00 then

This calculates the commission as 60% of Sales

3.1   Commission = 0.60 * Sales

This ends the if condition

4. End If

This prints the calculated commission

5. Print Commission

This ends the algorithm

6. Stop

(b) Amount of Rainfall

This begins the algorithm

1. Start

This initializes the number of days to 1

2. Days = 1

This initializes total rainfall to 0

3. Total = 0.0

The following while loop is repeated until day 31st

4. While Days <= 31

This gets input for Rainfall from the user

4.1. Input Rainfall

This calculates the total rainfall

4.2. Total = Total + Rainfall

This increments the number of days

4.3. Days = Days + 1

This ends the if statement

4.4. End If

This prints the total rainfall

5. Print Total

This ends the algorithm

6. Stop

What storyboarding technique uses a combination of two techniques, and which techniques does it combine?
O A. hierarchical; wheel and linear
O B. linear; webbed and hierarchical
O C. webbed; linear and hierarchical
© D. wheel; webbed and linear

Answers

Answer:

d

Explanation:

Answer:

They're right, it's c:  webbed; linear and hierarchical

Explanation:

Edmentum, I got it right.

Which option is the default when creating appointments and meetings in a user’s own calendar as it relates to Free/Busy information that others will see when looking at the user’s calendar?

a. Free
b. Working Elsewhere
c. Busy
d. Tentative
I only have 10 minutes left so please help fast!

Answers

Answer:

C !

Explanation:

Answer:

Busy

Explanation:

# input a mark in a subject of a student and
Check if the student is pass or not pass [pass mark=30]​

Answers

Answer:

mark = int(input("Enter mark: "))

if (mark >= 30):

 print("Pass")

else:

 print("Not pass")

Explain in not less than 3 Sentences

1. Decimal Number System


2.Binary Number System​

Answers

Answer:

The Decimal Numeral system :-

It is the standard system for denoting integer and non-integer numbers. It is the extension to non-integer numbers of the Hindu–Arabic numeral system.

Binary Number system :-

It is a number expressed in the base-2 numeral system , which uses only two symbols: typically "0" and "1". The base-2 numeral system is a positional notation with a radix of 2. Each digit is referred to as a bit, or binary digit.

hope it helps you...

16
Mackenzie is the network administrator for a large security corporation. What task
might Mackenzie perform as part of her job?
O answering calls from customers who need help
9
developing a website for the corporation
12
connecting a new computer to the network
15
testing a new video game before its release

Answers

Answer:

Connecting a new computer to the network.

Answer:

C. Connecting a new computer to the network

Explanation:

That is part of the job and the test say it is correct.

What is the output of this Python code?
def guess(a, b, c):
if a > b and a < c:
print(True)
else:
print(false)
X = 45
y = 31
z = 78
guess(x, y, z)

Answers

Answer:

True

Explanation:

in function guess:- a = x; b = y; c = z

so 45 > 31 AND 45 < 38

since both the stements are true

True is printed

What is the name of the function below?

function go(){
alert("hello everybody");
}

Answers

Answer:

It’s Java script I think and it makes something say hello everybody

Explanation:

Other Questions
The Efficient Market Hypothesis believes that ...? a. That frequent trading is needed for efficient markets. b. That only bonds are efficiently traded. C. That security prices fully reflect available information. d. All of the above. Why do market bubbles develop if the markets are efficient? a. Sometimes investors are not rational. b. Sometimes information is hidden or unknown. C. Bubbles never exist. d. Both a and b. describe robert dahls three ""procedural minimal"" conditions of democracy. 32--27777-32 3 456What is the domain of the function?x0O x < 1all real numbers would you expect iron to corrode in water of high purity? why or why not? The critical chi-square value for a one-tailed test (right tail) when the level of significance is 0.1 and the sample size is 15 is (Round your answer to 3 decimal places.) research has shown that ethnic socialization that results in having positive attitudes about one's ethnic group is associated with: Explain the distinction between synchronous and asynchronous inputs to a flip-flop. in an analysis of variance where the total sample size for the experiment is and the number of populations is k, the mean square due to error is:a. SSE(n_T - k) b. SSTR/k. c. SSE/(k - 1). d. SSTR/(n_T - k) When Okonkwo kills Ezeudus son, it is considered a feminine crime because _____.it occurred during a feastEzeudus son belonged to another villageit was inadvertentEzeudus son had no titles INCLUDING COURT FEES LAWY=ER FEES 1ST DUI COST Jose is preparing a digital slide show for his informative speech. According to your textbook, which type of special effect is the best choice?- images that fade away after being visible for a few moments- images that shrink or become larger, depending on their importance- Jose should avoid using special effects- images that fly in consistently from the right If you were to go north from the Sahel, you'd find __________. If you'd go south from the Sahel, you'd find __________.A. Sahara; NileB. tropical grasslands; SaharaC. Sahara; tropical grasslandsD. Nile; Sahara what is the ksp for the following equilibrium if zinc phosphate has a molar solubility of 1.5107 m? zn3(po4)2(s)3zn2 (aq) 2po34(aq) 50 Points! Multiple choice geometry question. Photo attached. Thank you! over the last ~40 years processor performance has increased __________ than memory performance. during this same period bandwidth has improved at a _________rate than than latency. WILL MARK BRAINLIEST. There have to be at least 2 answers for me to mark one of them brainliest. Doesn't have to be very long as it's going to be part of a larger essay. the nash equilibrium is when firm a charges a price of: $ enter your response here and firm b charges a price of: $ enter your response here (round your responses to two decimal places.) Barrington Enterprises earned $4.3 million in taxable income (earnings before taxes) during its most recent year of operations. Use the corporate tax rates shown in the popup window, LOADING..., to calculate the firm's tax liability for the year. What are the firm's average and marginal tax rates? identify the dns vulnerability where a resolver receives a bogus response to a dns query. all subsequent queries receive the wrong information and redirect connections to the wrong ip address. in a multiple regression model, the error term is assumed to