Your cousin, a senior in high school, asks you to play a Jeopardy-style game with her to help prepare for her computer science exam next week. She gives you these two clues about a type of relational database key: No column values may be NULL, and columns may be combined to create a unique primary key. Which type of key is she referring to

Answers

Answer 1

Answer:

She is referring to composite primary key

Explanation:

Composite primary key comprises of several columns with each having column having its own individual uniqueness.

In a composite primary, all columns need to have some value as none of them can be null. Also, these individual columns are grouped to get a unique value.

Related Questions

Q3.What are the hardware requirement of the multimedia system?

Answers

Answer:

• The processing unit

• The memory

• Universal Serial Bus (USB) Device

• Graphics Card and Graphical Processing Unit (GPU)

• Hard drive

• Monitor

• External storage and optical device

who invented the Bluetooth device

Answers

Answer:

The Bluetooth standard was originally conceived by Dr. Jaap Haartsen at Ericsson back in 1994.

Explanation:

according to this website www.androidauthority.com/history-bluetooth-explained-846345/

Answer:

alexander - edg 2022

Explanation:

1. __ and ___ were used in first generation computers

Answers

Answer:

Explanation:

vacuum tubes and punched cards were used in first generation computers.

I needed help with this answer thanks for your help.

cuales son los signos de exel

Answers

Answer

explanation

Operador de comparaciónSignificadoEjemplo< (signo menor que)Menor que=A1<B1>= (signo mayor o igual que)Mayor o igual que=A1>=B1<= (signo menor o igual que)Menor o igual que=A1<=B1<> (signo distinto de)No es igual a=A1<>B1

Answer:

¿Qué quieres decir?

Explanation:

please answer this question

Answers

Answer:

The answer for this question is Kry+Ptography

The formula =average(B1:B2) displays the value____(see the picture down)

Answers

9514 1404 393

Answer:

(a) 10

Explanation:

The formula displays the average of the values 8 and 12. That average is ...

(8+12)/2 = 10

What special signal is issued periodically from an Access Point and contains the network transmission rate and service set identifier (SSID), as well as other information needed for a computer to associate with the AP

Answers

Answer:

beacon frame

Explanation:

Beacon frame is a management frame In computer networks, known to be in IEEE 802.11 based WLANs. These frames are transmitted periodically and they contain all the information a station will require before it can rightly transmit a frame.

When it comes to announcing the presence of devices in a wireless computer network (WLAN), Beacon frames are used, and they can also be used in the synchronization of the devices and services

Select the three careers in the creative side of digital media.

broadcasting
web designer
animators
filmmaker
project management

Answers

Answer:

I would pick A B and D to be my answer

Answer:

web designer, animators, and filmmaker.

please answer this question

Answers

Answer:

17. True

18. Backup

Explanation:

Surfing the internet refers to going through various websites to find the different things that you want. This is also the same as browsing the internet. For this reason, both words can be used interchangeably to describe going to different websites on the internet.

When we store our data on alternative storage such as pen drives, hard disks and online storage services, we are backing up our data so that in the event that we lose access to the primary storage device, we will still have the data in those alternative storage devices and services.

In which of the following phases of filmmaking would a production team be focused on the process of casting?
(Select all that apply).
pre-production

post-production

development

distribution

Answers

Explanation:

There are five phases of film production and they include development, pre-production, production, post-production and distribution.

Answer:

pre-production

Explanation:

edg2021

Once the film concept has been developed, the film company transitions to the production phases: pre-production, production, and post-production. In pre-production, the technical details are worked out, a schedule is set, and the resources to produce the film are assembled. This includes casting the film, filling the technical positions, and scheduling the production. The actual filming takes place during the production phase, followed by a post-production phase in which the footage is edited and the final film emerges.

How can data be calculated?

Answers

Answer:

Data can be calculated by solving an equation

Explanation:

Other Questions

When 24,000 units are produced, variable costs are $12.00 per unit. Therefore, when 18,000 units are produced ________. Group of answer choices variable unit costs will increase to $16.00 per unit variable costs will remain at $12.00 per unit variable costs will total $288,000 variable unit costs will decrease to $9.00 per unit The graph shows the proportional relationship between the side lengths of a square and its perimeter. Which equation shows the same relationship between the side length and the perimeter of a square? Perimeter of Square P. 32 28 24 P 15 Perimeter (inches) 20 16 12 P1 8 0 2 4 6 8 Side Length (inches) P 418 can someone help plz Of the men in the survey, what percent of them prefer movies? Write your answer as a percent and round to one decimal place. if a news paper costs 25p how much would 3 weeks . if the the paper is puplished six days each week Which of the following is anorganelle?A. a brainB. a cellC. lungsD. a nucleus From the common lit YOUNG ATLANTA ARTIST ON THE RISE THROUGH SOCIAL MEDIAWhat is the central idea of the article?A. Social Media will better help you develop a career in arts than attending college. B. People have to be brave and need to take a chance on themselves if they want to be successful in music.C. People cannot rely on social media to connect them with other artists because sometimes collaborations dont work out. D. Social Media can be a useful tool to help people promote their artistic careers and connect with other artists around the world. Help please!please ASAP Fill in the blanks with the correct question word.1.se llama tu profesor de matemticas? Se llama Sra. Castro.2.es la clase de computacin? Es interesante.3.estudian en la biblioteca? Raul estudia en la biblioteca.4.de tus clases es la ms difcil? La clase de matemticas y la clase dequmica son difciles.5.es una palabra interrogativa?Es una pregunta. ( a question)6.ies tu clase favorita? La clase de espaol es mi clase favorita.7.vas despus de las clases? Voy a la prctica de ftbol.8.estn? Estn en el auditorio.9.es la fecha del Da de la Independencia? Es el cuatro de julio What vital organ does the nicotine attack and take control over? please answer my question Helpppppppp me plzzzzzzz Whats the answer Naeem bought a dirtbike. The original pricewas $1,800, but he got a discount of 30%. Whatwas the discounted price of the dirtbike? Find the co-ordinates of a point which divides the line joining the points (-3, 9) and (1, -3) internally in the ratio of 3:1. *a) (1, 1)b) (0, 0)c) (1, 2)d) (2, 2) The higher wages college graduates receive are primarily due to discrimination Answer A: discrimination A differences in working conditions Answer B: differences in working conditions B on-the-job training Answer C: on-the-job training C differences in bargaining power Answer D: differences in bargaining power D differences in human capital ap microeconomics Evaluate 10x2y2 for x = 1 and y = 2.A: 5/8B: 40C:2 1/2D:10(2)^0 HELP PLS THIS IS DUE AT 12 A motorboat travels 9 miles downstream (with the current) in 30 minutes. The return trip upstream (against the current) takes 90 minutes. please help me with this !!