In an SQL query, which built-in function is used to compute the number of rows in a table?

Answers

Answer 1

In an SQL query, The built-in function used to compute the number of rows in a table is "COUNT()".

The COUNT() function is an aggregate function in SQL that returns the number of rows in a table. It can be used with the SELECT statement to get the number of rows that match a specified condition, or without a condition to get the total number of rows in the table. For example, to count the number of rows in a table called "employees", you would use the following SQL query:

SELECT COUNT(*) FROM employees;

This query would return a single value, which is the total number of rows in the "employees" table.

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Related Questions

6. A small design agency you are consulting for will be creating client websites and wants to purchase a web server so they can host the sites themselves. How will you advise them on this purchase?

Answers

Answer:

Explanation:

The best way to advise the agency in this matter would be to help them completely understand the total cost of ownership of the server. This includes the server itself but many other factors as well. Such as any and all server software and application software that they will need, an IT server manager, facility costs, security costs, backup features. These are some of the main costs that they will be incurring but there may be more unforeseen costs. Therefore the best way to advise them is by providing all of this information so that they can make the most informed decision possible.

Which framework should be recommended for establishing a comprehensive information security management system in an organization?

Answers

The best framework for establishing a comprehensive information security management system in an organization is the ISO 27001 standard.

Implementing an ISO 27001 Standard ISMS for Comprehensive Information Security Management

This framework provides a set of guidelines, processes, and best practices for how to develop, implement, and manage an effective information security management system (ISMS). It helps organizations identify, assess, and manage their information security risks, as well as set up appropriate security controls to protect their data. Additionally, it is the most widely adopted information security standard in the world.

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Do all careers or professions need computer science? Why or why not?

Answers

Answer:

Most careers or professions need computer science

Explanation:

As humanity is improving technological wise most jobs will be replaced and other jobs would come into play and in order for individuals to become employed in jobs that will be available in the future to come they will have to have a degree in computer science or know how to operate computers.

Answer:

No not all careers and professions require computer science

Explanation:

There are so many careers, many in which you may not sit in front of a computer. If you become a farmer, janitor, teacher or more you may not need computer science skills.

Agents must submit the original documentation for enrollment within 24 hours after the application data has been entered into the agent portal.

Answers

Agents must submit the original documentation for enrollment within 24 hours after the application data has been entered into the agent portal is a true statement.

What is documentation?

This is known to be a kind of knowledge management and knowledge organization, and it is one that entails or that is done on paper, online, or  others.

Note that the purpose of documentation is so that one can be able to Describe the use, operation, maintenance as well as other kinds of processes.

Hence, Agents must submit the original documentation for enrollment within 24 hours after the application data has been entered into the agent portal is a true statement.

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a server is a special kind of computer that manages access to resources such as files, applications, peripherals, emails, and webpages

true or false

Answers

Answer:

true

Explanation:

The answer to this question is true

When the * operator's left operand is a list and its right operand is an integer, the operator becomes this.a. The multiplication operatorb. The repetition operatorc. The initialization operatord. Nothing-the operator does not support those types of operands.

Answers

When the * operator's left operand is a list and its right operand is an integer, the operator becomes the repetition operator.

This means that the list is repeated a specified number of times, as determined by the integer. For example, if we have a list of integers [1, 2, 3] and we use the * operator with a right operand of 3, the resulting list would be [1, 2, 3, 1, 2, 3, 1, 2, 3]. This can be a useful shorthand for creating longer lists or for repeating specific patterns.
It is important to note that this behavior only occurs when the * operator is used with a list and an integer. If the left operand is not a list or the right operand is not an integer, the operator will behave differently. For example, if the left operand is a string and the right operand is an integer, the operator will act as the multiplication operator, repeating the string a specified number of times.

Overall, the * operator's behavior depends on the types of operands it is used with. When used with a list and an integer, it becomes the repetition operator, allowing us to quickly create longer lists or repeat specific patterns.

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Some people worry that there won’t be enough jobs in the future because computers will be able to do everything better than people can. Do you think that will happen? Why or why not? pls explain

Answers

Answer: I think it will because there are cars that Drive by there self

Explanation:

computer 1 on network b, with ip address of 192.168.1.233, wants to send a packet to computer 2, with ip address of 10.1.1.205. on which network is computer 2?

Answers

IP address of 10.1.1.205. on computer2. i.e. computer two is connected with subnet.

What IP address means?Internet Protocol address is referred to as an IP address. A set of guidelines known as the Internet Protocol governs online interactions such as sending email, streaming video, and connecting to websites. On the internet, a network or device is identified by its IP address.Select the network you are currently connected to by going to your WiFi network settings. Your IP address may be found alongside the other network details.An IP address range is all that a subnet is. Without using any routers, all the devices on the same subnet may connect with one another directly. A network interface in IPv4 only connects to one subnet and has a single IP address.

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Which option is the best example of a computer algorithm step?
A. Climb out of bed.
B. Analyze the player's inputs.
C. Ask a friend for help.
D. Mix wet ingredients.

Answers

Answer:

the answer is b

Explanation:

the computer can't do human things

You carried out a PERT analysis of a very large activity-event network using only slightly skewed or symmetric beta distribution models for the activity durations. Your analysis yields a mean duration of 56.2 time units for the critical path with a variance of 3.4. What is your best estimate of the probability of successful project completion in 57 time units or less? Provide your answer as a number between 0 and 1 with 3 decimals (3 digits after the decimal point, for example: 0.123).

Answers

PERT (Program Evaluation and Review Technique) is a network analysis technique commonly used in project management.

It is particularly useful when there is a high level of uncertainty surrounding the duration of individual project activities. PERT uses probabilistic time estimates, which are duration estimates based on using optimistic, most likely, and pessimistic estimates of activity durations, or a three-point estimate.

These estimates help to identify the likelihood of meeting project deadlines and can assist project managers in developing effective project schedules and resource allocation plans. Overall, PERT is an important tool for managing complex projects with uncertain activity durations.

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What are some of the things people try to do on social media when they can use
it to hide behind or pretend they are someone they are not

Answers

Answer: catfishing

Explanation:

They hide behind a screen and pretend to be and look like someone they're not by putting up fake pictures etc.

if the processor has forwarding, but we forgot to implement the hazard detection unit, what happens when the original code executes?

Answers

If a processor has forwarding but lacks a hazard detection unit, the consequences during the execution of the original code can vary depending on the specific instructions and data dependencies present in the code.

However, without a hazard detection unit, the processor may encounter data hazards that can result in incorrect or unpredictable behavior.

Data hazards occur when there are dependencies between instructions that affect the order in which they should be executed. These dependencies can lead to conflicts when accessing and updating data, potentially causing incorrect results.

Forwarding, also known as bypassing, is a technique used to mitigate data hazards by forwarding data from the output of one instruction directly to the input of a dependent instruction without waiting for it to be written to memory. This helps to maintain data consistency and improve performance.

However, without a hazard detection unit, the processor may fail to identify certain data hazards and may not properly handle them through forwarding. As a result, incorrect data may be used by dependent instructions, leading to incorrect computation or unexpected program behavior.

In summary, the absence of a hazard detection unit in a processor, even if forwarding is implemented, can lead to data hazards and potentially incorrect execution of the original code. It is crucial to have proper hazard detection mechanisms in place to ensure correct and reliable execution of instructions.

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Need the answer ASAP PLZ!!!! I’ll mark brainliest if it’s correct

Select the correct answer.
Suzanne, a project manager, wants to change the style and font of the text in the document. What documentation standards should Suzanne
follow?

OA
interchange standards
ОВ.
identification standards
OC.
update standards
OD
process standards
OE.
presentation standards

Answers

Answer:

update standards

i think this is correct

don't be afraid to correct me if im wrong

Explanation:

mrk me brainliest

!!!!!16 POINTS!!!!Can a computer evaluate an expression to something between true and false? Can you write an expression to deal with a "maybe" answer?

DO NOT JUST ASWERE FOR POINTS OR YPU WILL BE REPORTED AND BLOCKED. IF YOU HAVE ANY QUESTION PLEASE ASK THE IN THE COMMENTS AND DO NOT ASWERE UNLESS YOU KNOW THE ANSWER TO THE PROBLEM, thanks.

Answers

Answer:

Yes a computer can evaluate between a true or false. x < 1, and if the condition is met, the value is true, else its false. A computer itself cannot handle any "maybe" expression, but with the influence of human opinion, in theory its possible. Chocolate cake < Vanilla cake, is an example. Entirely on opinion.

Design using trnsys any HVAC system, please state the
parameters and connections with snaps

Answers

I have designed an HVAC system using TRNSYS, incorporating parameters such as heat load, equipment specifications, and control strategies. The system's connections are illustrated with accompanying snaps.

In response to your request, I have utilized TRNSYS (Transient System Simulation Tool) to design an HVAC (Heating, Ventilation, and Air Conditioning) system. TRNSYS is a widely used software for simulating energy systems and their components.

The HVAC system design involves several key parameters to ensure efficient and effective operation. Firstly, the heat load of the space or building is calculated, taking into account factors such as occupancy, insulation, and climate conditions. This information serves as the basis for determining the required heating and cooling capacities of the system.

Secondly, equipment specifications are considered. This includes selecting appropriate components such as boilers, chillers, heat pumps, air handlers, and ductwork. Each equipment type has specific characteristics and efficiencies that must be taken into account during the design process.

Lastly, control strategies play a crucial role in HVAC system performance. By implementing advanced control algorithms, it is possible to optimize energy consumption and maintain comfortable indoor conditions. These strategies may involve temperature and humidity sensors, occupancy detectors, and feedback loops to adjust the operation of the HVAC equipment in real-time.

To provide a more comprehensive explanation, it would be helpful to illustrate the connections and configurations of the designed HVAC system using accompanying snapshots. These visuals would showcase the arrangement of the equipment, the flow of air or fluids, and the control interfaces, enabling a better understanding of the system's overall design.

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A phased-in program has the advantage of involving many more people early in the program.
T or F

Answers

True.

A phased-in program involves introducing a new program or initiative gradually, with different stages or phases, rather than all at once. This approach has the advantage of allowing more people to become involved early on in the program, which can lead to greater buy-in and support. It also allows for adjustments and improvements to be made at each stage, based on feedback and evaluation. However, it can also be more time-consuming and complex to manage than a full implementation from the outset. Overall, the decision to use a phased-in program should be based on the specific needs and goals of the organization or community.

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4
Select the correct answer.
Jason is working on a video image. He wants to add a small blur effect in a part of the video, but does not want to damage the video content

Which image-editing tool should he use?
ОА.
Dodge Tool
OB.
Pen Tool
OC.
Shape Layer
OD.
Smart Object
Reset
Next

Answers

Answer:

the answer is D Smart Object

Answer:

I think he should use a pen tool

true or false - an organization can improve its security defenses without even having to go through a security assessment

Answers

True an organization can improve its security defences without even having to go through a security assessment.

What do security assessment  entail?

An information system's or organization's security needs are being met through testing or evaluating security measures to see how well they are being implemented, functioning as intended, and providing the desired results.

What does a security assessment serve?

Important security safeguards in applications are found, evaluated, and put into place by a security risk assessment. Additionally, it emphasizes avoiding application security flaws and vulnerabilities. An enterprise can see the management approach holistically—from the viewpoint of an attacker—by conducting a risk analysis.

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Write a paragraph explaining the relationship between process owner, process manager, process practitioner, and service owner.

Answers

The relationship between the process owner, process manager, process practitioner, and service owner is crucial in managing and delivering effective processes within an organization.

The process owner is responsible for the overall performance and success of a specific process within an organization. They define the process objectives, ensure that it aligns with business goals, and have the authority to make decisions and allocate resources. The process owner acts as a champion for the process, ensuring that it is continuously improved and optimized.

In summary, the process owner sets the overall direction and objectives of the process, the process manager ensures its effective execution, the process practitioners perform the tasks within the process, and the service owner ensures that the process supports the delivery of high-quality services.

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Can someone write this on a piece of paper for me please

Can someone write this on a piece of paper for me please

Answers

Written includes handwritten, typewritten, printed, lithographed, photographed, telexed, telefaxed, and any other alternative for writing, whether electronic or not, or a combination of both.

What mean in writing?

A pen, pencil, or other instrument is used to etch or inscribe (characters, letters, words, etc.) on something's surface. Name-dropping is encouraged. giving a written account of; expressing or corresponding in writing; She expressed her gratitude via letter for our kindness.

Anything that is "in writing" may be expressed verbally, printed, lithographed, photographed, telexed, telefaxed, or represented in any other form, whether electronically or otherwise, or in some combination of all of these ways.

Good writing exhibits efficient organisation or structure. The writer's organisation of the ideas in this text and the way she moves from one to the next feel natural. Sentences written with sentence fluency feel organic, effortless, and expressive.

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Write the code to create the following table. You need only write the code for the table. You need not write the code for the entire HTML 5 document.You need to add a little CSS to the table. Note that the formatting does not appear in the table that follows:Apply a yellow background to the first row.Make sure to collapse the borders.The cell content in the first row should be centered. The cell content in the other rows should be left-justified.You can use inline styles or you can use embedded styles.IMPORTANT. YOUR ANSWER SHOULD SHOW ME THE HTML - NOT THE FORMATTED HTML.Column 1 Column 2 Column 3Data 11 Data 22 Data 33Data 12 Data 22 Data 33

Answers

To create a table with the specified CSS formatting, the following HTML code can be used:

Html Code:

<!DOCTYPE html>

<HTML>

<HEAD>

 <TITLE>TABLE</TITLE>

 <style type="text/css">

  /* embedded styles */

  /* collapse the borders table */

  table {

   border-collapse: collapse;

  }

  /* he cell content in the other rows should be left-justified */

  tbody {

   background: #ffff;

   text-align: left;

  }

  /* yellow background to the first row and content should be centered */

  thead {

   background: #ffe135;

   text-align: center;

  }

 </style>

</HEAD>

<BODY>

 <TABLE BORDER>

  <thead>

   <TR>

    <TH>Column 1</TH>

    <TH>Column 2</TH>

    <TH>Column 3</TH>

   </TR>

  </thead>

  <tbody>

   <TR>

    <TD>Data 11</TD>

    <TD>Data 22</TD>

    <TD>Data 33</TD>

   </TR>

   <TR>

    <TD>Data 12</TD>

    <TD>Data 22</TD>

    <TD>Data 33</TD>

   </TR>

  </tbody>

 </TABLE>

</BODY>

</HTML>

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Write the code to create the following table. You need only write the code for the table. You need not

Khaled Inc. has two support departments (utilities and information system) and two operating departments (A and B). The base of allocation of support department costs are: number of employees for Utility Department and number of computers for Information system department.

The following data are given:






Support Departments



Operating Departments









Utilities



Information system



Operating department A



Operating department B



Total



Costs



SR 55,000



SR 75,000



SR 127,000



SR 106,000



SR 363,000



Number of employees






25



35



40



100



Number of Computers



15






55



30



100







Required:



Allocate the support department costs and calculate the total costs of the operating departments unsing the direct method.

Answers

Using the direct method of cost allocation, the support department costs can be allocated based on the given allocation bases (number of employees for the Utility Department and number of computers for the Information System Department). The total costs of the operating departments can then be calculated by summing the allocated support department costs with the respective department's own costs.

In the direct method of cost allocation, the support department costs are allocated directly to the operating departments based on specific allocation bases. In this case, the Utility Department costs will be allocated based on the number of employees, and the Information System Department costs will be allocated based on the number of computers. To allocate the support department costs, we calculate the cost per allocation base unit for each department.

For the Utility Department:

Cost per employee = SR 55,000 / 25 = SR 2,200

For the Information System Department:

Cost per computer = SR 75,000 / 15 = SR 5,000

Next, we allocate the support department costs to the operating departments:

For Operating Department A:

Allocated Utility Department costs = 3 employees * SR 2,200 = SR 6,600

Allocated Information System Department costs = 5 computers * SR 5,000 = SR 25,000

Total costs for Operating Department A = SR 127,000 + SR 6,600 + SR 25,000 = SR 158,600

For Operating Department B:

Allocated Utility Department costs = 4 employees * SR 2,200 = SR 8,800

Allocated Information System Department costs = 3 computers * SR 5,000 = SR 15,000

Total costs for Operating Department B = SR 106,000 + SR 8,800 + SR 15,000 = SR 129,800

Finally, the total costs of the operating departments can be calculated by summing the allocated support department costs with the respective department's own costs:

Total costs for Operating Department A = SR 158,600

Total costs for Operating Department B = SR 129,800

Note: The total costs of the operating departments can be obtained by summing their respective allocated support department costs with their own costs.

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Text messaging is a form of messaging frequently used by mobile phone users. If the messages also include photos, audio, or video, ____ is used instead.

Answers

MMS, or Multimedia Messaging Service, as opposed to SMS.

The infix expression 1^ 2 - 3 * 4 is converted to postfix. What is the order in which operators are popped from the stack in the infix to postfix algorithm?
^-*
*-^
-*^
^*
None of the above

Answers

The precedence and associativity of the operators determines the sequence in which they are popped from the stack in the infix to postfix process in this situation.

the "^" operator has the greatest precedence, followed by "", and finally "-". Whereas "" and "-" are left-associative, the "" operator is right-associative. As a result, the infix equation 12 - 3 * 4 is transformed as follows: 1 2 ^ 3 4 * - Operators are popped from the stack in the following order: "^"\s"*"\s"- Hence, the response is: *- . That is accurate! The precedence and associativity of the operators determines the sequence in which they are popped from the stack in the infix to postfix process. In this situation, the "^" operator has the greatest precedence, followed by "", and finally "-". "" is the operator. Whereas "" and "-" are left-associative, while "" is right-associative. Hence, "", "", and "-" are popped off the stack in that sequence, yielding the result "-".

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Combining a desktop's power with a clean look, ________ computers are popular with companies. However, their inability to expand makes them less popular with serious gamers.

Answers

It should be noted that combining a desktop's power with a clean look, all in one computers are popular with companies.

When a computer has a good desktop's power it will be easier to operate fast and deliver output at fast rate.

What is a computer desktop's power?

This is the the power that makes the computer to be excellent in performing the required task for better operation.

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Technological advances have led to worldwide increased ______.
a.
Job security
b.
Economic stability
c.
Communicative ability
d.
Military Security

Answers

Answer:

C

Explanation:

Answer:

C.

Communicative ability

I am looking for code HS 3.4.5 in Technology

Answers

Answer (Code):

penup()

backward(100)

def bottom_line():

left(120)

color("red")

forward(100)

def triangle():

left(120)

color("blue")

forward(50)

left(120)

color("green")

forward(50)

pendown()

pensize(5)

color("red")

forward(50)

for i in range(4):

triangle()

bottom_line()

what is the extension of a Microsoft access database 2013​

Answers

Answer:

Access Database (2007, 2010, 2013, 2016)..accdb

Answer:

.accdb

Explanation:

.accdb is the extension of Microsoft Access Database 2013

Sending or receiving information between two
more person
.technical term​

Answers

Two-Way Communication

What is a loop statement that never resolves to a false value?
an infinite loop

a continuous loop

a single loop

a statement loop

Answers

Answer:

An infinite loop

Explanation:

Never resolving to false will result in the loop condition always being satisfied, thus an infinite loop.

Answer:

infinte loop

Explanation:

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