write a query to display the patron id and the average number of days that patron keeps books during a checkout. limit the results to only patrons who have at least three checkouts. sort the results in descending order by the average days the book is kept, and then in ascending order by patron id

Answers

Answer 1

Answer: Certainly! Here's a query that retrieves the patron ID and the average number of days patrons keep books during a checkout. It limits the results to only patrons with at least three checkouts and sorts the results in descending order by the average days the book is kept, and then in ascending order by patron ID:

SELECT patron_id, AVG(DATEDIFF(return_date, checkout_date)) AS average_days

FROM checkouts

GROUP BY patron_id

HAVING COUNT(*) >= 3

ORDER BY average_days DESC, patron_id ASC;

In this query, I assume there's a table named checkouts that contains the checkout information with columns patron_id, checkout_date, and return_date. The DATEDIFF function calculates the difference in days between the return_date and checkout_date. We group the results by patron_id and use the HAVING clause to filter only those patrons who have at least three checkouts. Finally, we sort the results in descending order by the average days and then in ascending order by patron ID.

Please make sure to replace checkouts with the actual name of your table containing the checkout data, and adjust the column names accordingly if they differ in your schema.

Explanation:


Related Questions

Write a program to display "HELLO WORLD" ​

Answers

Explanation:

Here's a simple "Hello, World!" program written in Python:

```python

print("HELLO WORLD")

```

To execute this program, you need to have Python installed on your computer. Save the code above to a file named `hello_world.py` and then run it using the command `python hello_world.py` in the terminal or command prompt.

Which devices are managed through device management?
Device management is the process of managing devices.
NEED ANSWER ASAP PLS HELP

Which devices are managed through device management?Device management is the process of managing devices.NEED

Answers

Answer:
computers and Mobile phones ( including game consoles and tablets) are managed through device management
Explanation:
Device management includes a type of security software used to monitor,secure and manage systems such as mobile phones computer laptops and desktops, Tablets and smart televisions as well as Game consoles. It as well involves the management,operation and maintenance of the physical aspect of the systems from external threats/intruders
Anti virus software is an example of a device management software used to protect systems from malware, by detecting and removing them and also by preventing them.
Firewall is a complete device management tool because it detects and prevents intruders and virus from penetrating the system software

01011001 01001111 01010101 01010010 01010100 01001000 01000101 01000010 01010010 01000001 01001001 01000001 01001100 01001001 01000101 01010011 01010100

if anyone can tell me what the binary code above is you get brainliest
+95 points

Answers

Answer:

YOURTHEBRAIALIEST

Explanation:

HEHE, HIIIIIIII

Answer:

01000101

Explanation:

I have a tech question. I'm not getting emails from someone. I still have a lot of storage on my account. I have tried swapping devices. I have tried logging out and logging back in. I'm not sure what to do.

Answers

Answer:

you have delete your old mails And check out your met connection and also check you didn't block him

What is missing in the following program in order to have the output shown? numA = 24 while numA 3: numA = numA - 7 print(numA) OUTPUT: 3

Answers

Answer:

i got >

Explanation:

24 is > 3

Answer:

me too >

Explanation:

24 is greater than 3

Assume char[][][] x = new char[14][5][16], what are x.length, x[2].length, and x[0][0].length?

Answers

For the given array `char[][][] x = new char[14][5][16]`, the values you are asking for are as follows: x.length` represents the length of the first dimension of the array. In this case, it is 14. [2].

length` represents the length of the second dimension of the array at index 2. In this case, it is 5. `x[0 ][0]  length` represents the length of the third dimension of the array at index [0][0]. In this case, it is 16.

the values you are asking for are as follows: x.length` represents the length of the first dimension of the array



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Which practice enables recovery of accidental deletions in data records?

Which practice enables recovery of accidental deletions in data records?

Answers

Answer: Data backup

Explanation:

Explanation: Data backup is the practice of keeping files in case of any accidental deletions for restoration

When is a for loop used in a Java Program?

A. When you already know how many times to perform an action.
B. When you want to test how many times to perform an action.
C. When you don't know how many times to perform an action.
D. When you want to define the name of an action.

Answers

Answer:

A

Explanation

Use "for loop" when size/length is pre-defined/know, such as

int[] numbers = new int[]{ 1,2,3,4,5,6,7,8,9,10 };

length : 10

snippet:

numbers.forEach(int num in numbers){

}

// or

for(int i=0; i < numbers.length ; i++){

}

How does Harrison react to the news that Katherine has to walk 800m to the bathroom? in hidden figures

Answers

Answer: Your welcome!

Explanation:

Harrison is outraged at the news that Katherine has to walk 800m to the bathroom. He angrily tells the building manager that this is unacceptable and demands that a bathroom be provided for the female employees. He also demands that Katherine and the other female employees be allowed access to the same facilities as their male counterparts. He then suggests that the NASA official in charge of the building should be reprimanded for allowing this situation to occur.

PC Shopping Network may upgrade its modem pool. It last upgraded 2 years ago, when it spent $145 million on equipment with an assumed life of 5 years and an assumed salvage value of $15 million for tax purposes. The firm uses straight-line depreciation. The old equipment can be sold today for $100 million. A new modem pool can be installed today for $180 million. This will have a 3-year life and will be depreciated to zero using straight-line depreciation. The new equipment will enable the firm to increase sales by $27 million per year and decrease operating costs by $14 million per year. At the end of 3 years, the new equipment will be worthless. Assume the firm’s tax rate is 30% and the discount rate for projects of this sort is 8%.

Required:

a. What is the net cash flow at time 0 if the old equipment is replaced? (Negative amounts should be indicated by a minus sign. Do not round intermediate calculations. Enter your answer in millions rounded to 2 decimal places.)

b. What are the incremental cash flows in years (i) 1; (ii) 2; (iii) 3? (Do not round intermediate calculations. Enter your answer in millions rounded to 2 decimal places.)

c. What is the NPV of the replacement project? (Do not round intermediate calculations. Enter the NPV in millions rounded to 2 decimal places.)

d. What is the IRR of the replacement project? (Do not round intermediate calculations. Enter the IRR as a percent rounded to 2 decimal places.)

Answers

To calculate the net cash flow at time 0 if the old equipment is replaced, we need to consider the initial investment and the salvage value.

The initial investment is the cost of the new modem pool, which is $180 million. However, we can subtract the salvage value of the old equipment, which is $100 million, since it can be sold today. Therefore, the net cash flow at time 0 would be $180 million - $100 million, which equals $80 million (negative). To calculate the incremental cash flows in years 1, 2, and 3, we need to consider the increase in sales and decrease in operating costs.

In year 1, the increase in sales is $27 million, and the decrease in operating costs is $14 million. Therefore, the incremental cash flow in year 1 would be $27 million - $14 million, which equals $13 million. In year 2, the increase in sales and decrease in operating costs remain the same, so the incremental cash flow in year 2 would also be $13 million.In year 3, the new equipment will be worthless, so there won't be any increase in sales or decrease in operating costs. Therefore, the incremental cash flow in year 3 would be $0 million.

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What is a decision tree

Answers

A decision tree is a diagram or chart that people use to determine a course of action or show a statistical probability.

Jorge wanted to find out how many 9-volt batteries connected in a series are required to create a 120-volt circuit. So, he divided 120 by 9 and concluded that he needed 13 1/3. Write a sentence explaining Jorge's mistake, and tell the correct answer.

Answers

Answer:

Jorge needed to have over 13 (thirteen) 9 volt batteries to create 120 volts.

Explanation:

Rather than saying he just needs 13 1/3 (one-quarter) 9 volt batteries, Jorge would have correctly concluded he needed over over 13 number of 9 volts battery to create 120 volts.

This is the case because in a series connection, two or more batteries are connected in a way that the same current would flow through each battery through their terminal. If he had taken note of the fact that each battery has an internal resistance, which may reduce the flow of current through the batteries Jorge would know that the  13 number of 9 volts batteries would not give exactly 120 volts because of the internal resistance of the battery circuit.

Because the bastion host stands as a sole defender on the network perimeter, it is commonly referred to as the __________ host.

Answers

The good answer is: Sacrificial

What is the final value of x (after this code has executed)?

int x = 0;

for (x = 0; x < 200; x++)

{

System.out.println(x);

}

Answers

Answer:

199

Explanation:

i starts at 0. One more than 0 is one. Until you get 199.  

The computer is counting as seen below:

0

1

2

....

199

which is not a characteristic of an np-complete problem? question 10 options: no efficient algorithm has been found to solve an np-complete problem. an efficient algorithm to solve an np-complete problem may be possible. if an np-complete problem has an efficient solution, then all np-complete problems will have an efficient solution. all np-complete problems can be solved efficiently.

Answers

The characteristic of an NP-complete problem that is not correct among the given options is: All NP-complete problems can be solved efficiently.

1. **No efficient algorithm has been found to solve an NP-complete problem:** This is a characteristic of NP-complete problems. It implies that, so far, no algorithm has been discovered that can solve NP-complete problems in polynomial time.

2. **An efficient algorithm to solve an NP-complete problem may be possible:** This is a possibility. While no efficient algorithm has been found yet, it is still an open question whether an efficient algorithm exists for NP-complete problems. However, if an efficient algorithm is found for one NP-complete problem, it would imply that all NP-complete problems have efficient solutions.

3. **If an NP-complete problem has an efficient solution, then all NP-complete problems will have an efficient solution:** This statement is correct. The nature of NP-complete problems is such that if one NP-complete problem can be solved efficiently (in polynomial time), then all NP-complete problems can be solved efficiently. This is due to the inherent property of NP-completeness and the relationship between NP-complete problems.

4. **All NP-complete problems can be solved efficiently:** This statement is not correct. NP-complete problems are a class of problems for which no known efficient algorithm exists. They are believed to require exponential time to solve in the worst case. Solving NP-complete problems efficiently would imply that the class of problems in NP can be solved in polynomial time, which would have significant implications for computational complexity theory.

Therefore, the characteristic of an NP-complete problem that is not correct among the given options is that **all NP-complete problems can be solved efficiently** (Option 4).

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edhesive 6.8 lesson practice answers please ​

Answers

Answer: any more info yo can give me. i want to help i dont undestand

Explanation:

Answer:

import simplegui

import random

# global constants

WIDTH = 600

HEIGHT = 400

PARTICLE_RADIUS = 5

COLOR_LIST = ["Red", "Green", "Blue", "White"]

DIRECTION_LIST = [[1,0], [0, 1], [-1, 0], [0, -1]]

# definition of Particle class

class Particle:

  # initializer for particles

  def __init__(self, position, color):

      self.position = position

      self.color = color

  # method that updates position of a particle    

  def move(self, offset):

      self.position[0] += offset[0]

      self.position[1] += offset[1]

  # draw method for particles

  def draw(self, canvas):

      canvas.draw_circle(self.position, PARTICLE_RADIUS, 1, self.color, self.color)

  # string method for particles

  def __str__(self):

      return "Particle with position = " + str(self.position) + " and color = " + self.color

# draw handler

def draw(canvas):

  for p in particle_list:

      p.move(random.choice(DIRECTION_LIST))

  for p in particle_list:

      p.draw(canvas)

# create frame and register draw handler

frame = simplegui.create_frame("Particle simulator", WIDTH, HEIGHT)

frame.set_draw_handler(draw)

# create a list of particles

particle_list = []

for i in range(100):

  p = Particle([WIDTH / 2, HEIGHT / 2], random.choice(COLOR_LIST))

  particle_list.append(p)

# start frame

frame.start()

Explanation:

How many dlcs in total were in each black ops game (including dlc weapons) answer for 25 whole points

Answers

Answer:

... ......................... ...............

you did the same<3<3

on a pentium processor the _________ is directly connected to the i/o unit.

Answers

On a Pentium processor, the System Bus is directly connected to the I/O Unit.

The System Bus is the primary communication pathway between the processor and all other components in the computer system, including the memory, the input/output devices, and other peripheral components. The I/O Unit, on the other hand, is responsible for managing the communication between the processor and all the input/output devices, such as the keyboard, mouse, printer, and other external storage devices.

The direct connection between the System Bus and the I/O Unit in the Pentium processor enables fast and efficient data transfer between the processor and the input/output devices. This is important because the performance of the computer system largely depends on the speed at which data can be processed and transferred between the different components. By having a direct connection between the System Bus and the I/O Unit, the Pentium processor is able to minimize the latency and maximize the throughput of data transfer, resulting in improved system performance and responsiveness.

In summary, the direct connection between the System Bus and the I/O Unit in the Pentium processor is a key feature that enables fast and efficient communication between the processor and the input/output devices, leading to improved system performance and responsiveness.

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Type a message (like “sir i soon saw bob was no osiris”) into the text field in the asciitohex.com webpage. Which of the encodings (binary, ASCII decimal, hexadecimal, or BASE64) is the most compact? Why?

Answers

Answer:

BASE64

Explanation:

The encoding c2lyIGkgc29vbiBzYXcgYm9iIHdhcyBubyBvc2lyaXM= is the shortest.

Answer:

BASE64

Explanation:

BASE64 is the most compact encoding because it is the shortest encoding of "sir i soon saw bob was no osiris".

Which two targets are valid options when selecting a Remote Site in Prism? (Choose two.)
A. Physical Cluster
B. Network attached storage
C. XI Cloud Services
D. Tape Library
E. Cloud

Answers

The two valid options when selecting a Remote Site in Prism are: A. Physical Cluster: This option allows you to select another physical Nutanix cluster that is managed by the same Prism Central instance.

You can use this option to manage a remote cluster or to perform cross-cluster operations such as disaster recovery. E. Cloud: This option allows you to select a cloud provider such as AWS or Azure as a remote site. You can use this option to perform cloud-related operations such as cloud backup or cloud bursting. A physical cluster in the context of data center infrastructure refers to a group of physical servers that work together to provide high availability and fault tolerance for mission-critical applications and services. Physical clustering is a way to achieve redundancy and prevent single points of failure by distributing application workloads across multiple physical servers. This ensures that if one physical server fails, the application can continue running on another server in the cluster without any downtime or data loss. Physical clustering requires careful planning, configuration, and management to ensure that the physical servers in the cluster are compatible and configured correctly. It also requires appropriate software and hardware components, such as network adapters, storage, and redundant power supplies, to provide the necessary level of availability and performance.

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Which of the following is a distraction that you find when photographing animals at the zoo?

Fences
Enclosure glass
Other people
All of the above

Answers

Answer:

D all of the above

Explanation:

because fences, enclosure glass, and other people are all distracting from the real focus which is the animal.

Please Mark brainliest and give 5 star.

Answer:

All of the above (I did the test and got it right)

Explanation:

Research one online piece of technology, write down the needs and wants that it meets, Explain how does it meet wants or needs? (Giving Brainliest To The Best Answer) (20 Points)

Answers

Answer:

Motherboard - It's wants are for it to be upgraded into a better matter that it is now... It's needs are to be used and commanded in a way that can correctly function the computer.

It meets the wants by having the motherboard wanting to be updated (the newer the better right?)

It meets the needs by having it's commands that make the computer/pc function, without the motherboard there isn't a computer (No mother no kid right?)

Explanation:

(btw I like your Kakashi pic)

Why is it never a good idea to touch the lens or the LCD on your camera?
A. because the heat from your fingers will melt the LCD screen
B. because the oils from your skin can cause permanent smudging
C. because your finger will get in the way of your shot
D. because your fingernails will scratch the lens

Answers

Answer:

D. because your fingernails will scrach the lens

Cual es de las siguientes pertenece al software de una computadora
A bocina
B teclado
C messenger
D monitor

Answers

Explanation:

a sjsjsjsijdjdnjjjjururueu

Write a pseudocode declaration for a String array initialized with the following
strings: "Einstein", "Newton", "Copernicus", and "Kepler".

Please keep the STRING ARRAY in mind because that's what the unit is about.

Answers

Here is a pseudocode declaration for a string array initialized with the given strings:

```

declare a string array named scientists

initialize scientists with values "Einstein", "Newton", "Copernicus", and "Kepler"

```

Alternatively, the declaration and initialization can be combined in one line:

```

declare a string array named scientists and initialize it with values "Einstein", "Newton", "Copernicus", and "Kepler"

```

In programming languages such as Java, the syntax for declaring and initializing a string array would be:

```java

String[] scientists = {"Einstein", "Newton", "Copernicus", "Kepler"};

```

In C#, the syntax would be:

```csharp

string[] scientists = {"Einstein", "Newton", "Copernicus", "Kepler"};

```

And so on for other programming languages.

The value that excel displays for a cell is always the precise value you enter in the spreadsheet or the precise value resulting from a formula in that cell that is stored by the software.a. Trueb. False

Answers

This claim is untrue since Excel should always show the exact number that you enter into the column or the exact value that results from a calculation that is placed in that cell.

What are a few illustrations of spreadsheet applications?

A type of computer application called a technology program may be used to organise, store, and analyse data in a tabular format. The application can imitate digital versions of paper accounting spreadsheets. They could also have several connected sheets with content is shown text, statistics, or graphics.

Which spreadsheet programme is the most straightforward?

LibreOffice Arithmetic or Apache Avian influenza viruses Calc offline may indeed be adequate if you simply need a basic computer for straightforward administrative tasks, such as calculations. if you desire more complex features.

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colour statement is used for setting .................... and .................. colors​
(a) screen,Paint (b) line,circle
(c) foregroung,Background
(d) none of these

Answers

Answer:

The answer to this question is given below in the explanation section.

Explanation:

The correct answer to this question is C. i,e, foreground, and background.

First, we need to know what is a color statement.

The purpose of the color statement is to select display colors. It is used to select the foreground and background colors of the display.

So, the correct answer is :

Colour statement is used for setting foreground and background colors.

In general, it allows you to select foreground and background colors for a display. You can use different codes to display and see the effect of the color statement.  

While other options are not correct, because the color statement used to select foreground and background color for the display. It does not use for setting screen and paint color in it. It also does not use for drawing lines and circles etc.

Who wants to play pool?

Answers

Answer:

I like pool. I'll play!

Explanation:

accessing both the high and low side of the system for refrigerant recovery when using the system-dependent recovery process?

Answers

The compressor must be heated before being pounded with a rubber mallet. In order to recover as much refrigerant as feasible during passive recovery if the compressor is not operating, we must have access to both the high and low sides of the system.

The technician should run the compressor and recover from the high side of the system when employing a system-dependent recovery system on a device with an active compressor. The evaporator's pressure and temperature are reduced as a result of the metering device's control of high-pressure liquid refrigerant. As a general rule, it is flashed into the evaporator as 75% liquid and 25% vapor. A as well as B. It may be important to achieve the desired recovery efficiency, and it can accelerate the rate of recovery.

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All are database management systems programs except:

a) corel paradox
b) filemaker pro
c) microsoft database
d) spreadsheets​

Answers

Spreadsheets are not database.

A database is a computerised system designed to store large amounts of raw data. ... Databases can then enforce (store and show) the relationship between different records and tables. Spreadsheets cannot do this.
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