The ____ of two tables is a table containing all rows that are in both tables.
a. minus
b. union
c. difference
d. intersect
Answers
The intersection of two tables is a table containing all rows that are in both tables. Option d. is the correct answer.
In other words, the intersection of two tables is a set of common records that exist in both tables. To find the intersection of two tables in SQL, you can use the INNER JOIN clause. The INNER JOIN clause returns only the rows that have matching values in both tables. This means that the resulting table contains only the records that exist in both tables. The intersection of two tables can be useful when you need to combine data from two different sources and only want to include the records that are common to both sources.
In SQL, the intersection of two tables can be obtained using the JOIN operator, specifically the INNER JOIN. The INNER JOIN returns only the rows that have matching values in both tables, based on a specified join condition. The resulting table will contain all columns from both tables, but only the rows that match the join condition. The intersection can also be obtained using the INTERSECT operator, which returns only the rows that are in both tables and eliminates duplicates. The intersection of two tables can be useful for finding common data points or for combining related data from different tables.
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Related Questions
(T/F) the communication path between a microprocessor, ram, and peripherals is called the data bus.
Answers
The communication path between a microprocessor, RAM, and peripherals is called the data bus. In a computer system, the data bus serves as the primary conduit for transmitting information among the microprocessor, memory units like RAM, and various input/output devices known as peripherals. Statement is True.
The data bus is essentially a collection of wires or traces on a circuit board that facilitates the transfer of data in parallel, enabling simultaneous transmission of multiple bits of information. It helps ensure efficient and speedy communication within the system. The width of the data bus, measured in bits, directly impacts the amount of data that can be transmitted at a given time and affects the overall performance of the computer system.
In addition to the data bus, there are two other essential buses in a computer system: the address bus and the control bus. The address bus is responsible for specifying the memory locations where data is to be read or written, while the control bus carries the necessary signals to coordinate the system's components. To summarize, the statement is true. The data bus is a crucial part of a computer system that provides the communication path between the microprocessor, RAM, and peripherals, ensuring efficient and fast data transfer.
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Which of the following is not a characteristic of a large database?
a) Optstore items in a filing cabinet.
b) Stores items in a computer such as music.
c) stores large amounts of items such as an online store.
d) can be used as a small recipe book.
Answers
Which line of code will create an instance of the pet class?
class pet:
def __init__(self,strSpecies,strName):
self.species = strSpecies
self.petName = strName
myPetA = pet('dog', 'Spot'), myPetA = pet(self, 'dog', 'Spot'), myPetA = new pet('dog', 'Spot'), myPetA .pet() = 'dog', 'Spot'
Answers
Answer:
myPetA = pet(self, 'dog', 'Spot')
Explanation:
I mite be wrong
The line of code that will create an instance of the pet class is myPetA = pet (self, 'dog', 'Spot'). Option B is correct.
What is code?Computer code, or a set of instructions or a system of rules defined in a specific programming language, is a term used in computer programming (i.e., the source code). It is also the name given to the source code after a compiler has prepared it for computer execution.
Code, often known as source code, refers to text that a computer programmer has created in a programming language. Programming languages like C, C#, C++, Java, Perl, and PHP are examples.
Another less formal term for text produced in markup or style languages, such as HTML and CSS, is code (Cascading Style Sheets)
Therefore Option B is correct.
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perfect bound books are usually trimmed on how many sides?
a. 1
b.2
c. 3
d. 4
Answers
Hope this helps!! :)
Two importance of storage devices
Answers
What is the output of the following snippet?
my_list =
[[0, 1, 2, 3] for i in range (2) ]
print (my_list [2] [0])
Answers
Answer:
Explanation is being shown in the file that takes you to the link
After 4 years of night school and nearly half a year waiting for the results of the bar examination, you have been admitted to practice law in your state. You decide that you have to keep your current government job while, hopefully, establishing your law practice. To do a first class job for the client, you need first class equipment i.e., good computers and printers, fax machines, etc. You stay late at the office each day to complete work on your pleadings, and you create a database on your computer to keep track of your contacts and cases. Is this an acceptable temporary solution
Answers
Answer:
yes
Explanation:
because it will make the lawyer to keep track of all is client cases without any stress
who likes games https://www.gameszap.com/game/12038/y8-multiplayer-stunt-cars.html
Answers
Answer:
Bet G
Explanation:
Describe the Order of Operations in Java programming.
Answers
Answer:
You’ll give the multiplication and division operators a rank of 2 and the addition and subtraction operators a rank of 1.
Explanation:
When you code it up, you’ll compare two operators
I ONLY NEED HELP WITH QUESTION 6 SHOWING HOW TO USE EXCEL FORMULA WHEN FINDING THE ANSWER:EXERCISE 8: USING "LOOKUP" AND "COUNTIF" FUNCTIONS TO RANK EMPLOYEE PERFORMANCE Managers often like to rank employees performance. One scheme called "20-70-10," or more disparagingly as "Rank and Yank," categorizes the top 20 percent of employees as "Best," the middle 70 percent of employees "Near Best," and the bottom 10 percent as "Below Best." Go to the "Excel Student Spreadsheets BUS 2000" and click on the tab/worksheet labeled "Lookup". There you will find the performance ratings—on a ten-point scale—for 20 employees. Each employee has 3 performance ratings. • In the 5th Column, or Column E, calculate the average performance rating for each employee to one decimal place. • Then, in the 6th Column, or Column F, use the LOOKUP function below to classify the employees. o =LOOKUP(E2,{0,4,9,10},{"Below Best", "Near Best", "Best"}) The Lookup formula is structured as follows: • E2 is the Cell containing the data for which the calculation should be made. • 0 to 4 is the classification of "Below Best". • 4 to 9 is the classification of "Near Best". • 9 to 10 is the classification of "Best". • The words "Below Best", "Near Best", and "Best" are placed for each of the three classifications according to an employee’s average rating. Using the results, do the following: 1. List the names of the "Best" employees 2. List the names of the "Near Best" employees 3. List the names of the "Below Best" employees Next, redefine the Lookup function to classify employees as "Above Average" and "Below Average" based on whether they scored above or below an average of 5 in their three performance scores. Place the results in the 7th Column, or Column G. Next, we’re going to count how many employees were categorized as either "Above Average" or "Below Average". Place the following results in cells B23 and B24. 4. How many people scored "Above Average?" 5. How many people scored "Below Average?"To answer these questions, use the COUNTIF function. Its form is =COUNTIF(G2:G21, "Above Average"), where G2:G21 is the range of cells. In this example, the function counts the number of employees that were "Above Average" according to the former classification.Lastly, you will notice that more people scored "Above Average" than "Below Average" using 5 as the cut point. Redefine the LOOKUP formula so that a roughly equal number of employees are classified as "Above Average" and as "Below Average." 6. What is the new cutoff point?
Answers
The new cutoff point to classify employees as "Above Average" or "Below Average" is 4. This ensures a roughly equal distribution of employees in both categories, taking into account an average score of 5 as the dividing point.
To determine the new cutoff point in order to classify an equal number of employees as "Above Average" and "Below Average," we need to adjust the ranges in the LOOKUP function. Let's walk through the steps to find the new cutoff point
Step 1: Calculate the average performance rating for each employee in Column E.
Step 2: Use the LOOKUP function in Column F to classify employees as "Below Best," "Near Best," or "Best" based on their average rating. The formula is as follows:
=LOOKUP(E2, {0, 4, 9, 10}, {"Below Best", "Near Best", "Best"}
Step 3: List the names of the employees classified as "Best" in one column, the names of the employees classified as "Near Best" in another column, and the names of the employees classified as "Below Best" in a third column.
Step 4: Redefine the LOOKUP function in Column G to classify employees as "Above Average" or "Below Average" based on whether they scored above or below an average of 5 in their three performance scores. The formula is as follows:
=LOOKUP(E2, {0, 5, 10}, {"Below Average", "Above Average"}
Step 5: Use the COUNTIF function to count the number of employees categorized as "Above Average" and "Below Average." Place the results in cells B23 and B24. The formulas are as follows
B23: =COUNTIF(G2:G21, "Above Average")
B24: =COUNTIF(G2:G21, "Below Average")
Step 6: Compare he counts of employees classified as "Above Average" and "Below Average." If there are more employees classified as "Above Average," we need to adjust the cutoff point to achieve a roughly equal distribution.
To find the new cutoff point, we can adjust the ranges in the LOOKUP function in Column G. We want to divide the range of scores evenly between "Below Average" and "Above Average." Let's say we have N employees in total, and we want to divide them equally.
The new rnges in the LOOKUP function can be calculated as follows:
"Below Average" range: 0 to (5 - 1)
"Above Average" range: (5 - 1) to 1
Here, (5 - 1) represents the new cutoff point. We subtract 1 because we want to exclude the exact average score of 5 from either classification.
Therefore, the new cutoff point is 4.
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10.13 lab 10c: output range with increment of 5 write a program whose input is two integers. output the first integer and subsequent increments of 5 as long as the value is less than or equal to the second integer. you may prompt for the two integers as you wish; the prompt will not be included in the grading. ex: if the input is:
Answers
he program gives an output in increment of 5, if the first inputted integer is less than the second. The program written in python 3 goes thus
The average numbers of shares a piece of content receives is known as its:
Answers
Answer:
Amplification.
Explanation:
Social media publishing can be defined as a service that avails end users the ability to create or upload web contents in either textual, audio or video format in order to make them appealing to a target audience.
Thus, these web contents are generally accessed by end users from time to time through the use of various network-based devices. As users access these contents, they're presented with the option of sharing a particular content with several other people a number of times without any form of limitation.
Hence, the average numbers of shares a piece of content receives is known as its amplification. The higher the average numbers of shares a particular content receives, the higher the number of traffic it generates for its publisher.
1) What is CPU ? Explain it's parts.
2) what is memory ?
3) What is Primary memory ? Explain RAM and ROM.
4)What is secondary memory ? Explain it's types.
5) What is output Unit Explain soft copy Output and Hard copy output.
Answers
Answer:
Brother search these questions individually in gle and you will find all there, better than waiting for answers here.
Explanation:
Have a nice day :)
Answer:
Ans.1 -The CPU is also known as central processing unit is the processor or brain of the computer. Ans.2-Storage device of a computer is called computer memory. Ans.3-Primary memory consists of RAM(Random access memory) and (Read only memory). Ans.4-Secondary memory is permanent and so is called non-volatile memory. Ans.-5 I don't know
an administrator at ursa major solar wants to allow a sales user to relate an opportunity to a campaign. what are two ways to accomplish this goal?
Answers
An administrator at Ursa major solar wants to allow a sales user to relate an opportunity to a campaign and can accomplish this by choosing the primary campaign source for the opportunity and utilizing the campaign influence-related list on the opportunity.
The first step is to select the opportunity's primary campaign source. By doing so, the Primary Campaign Source column will be filled in to show that the opportunity came about as a result of a certain campaign. The last associated campaign on the lead record will be prepopulated with any opportunities that are created after that lead is converted. Alternatively, the last campaign was linked with a contact when an opportunity was produced from that contact.
Utilizing the campaign influence associated list on the opportunity is the second method. Every chance connected to a campaign is displayed in the list of opportunities relevant to that campaign.
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What is the primary purpose of source code editor features such as keyword hi lighting and auto-completion A.to speed up the coding process B.to improve the visual appeal of the editor
C.to help programmers debug the code. D.to make coding easier for learners E.to make it easier for machines to read the code
Answers
Answer:
A
Explanation:
It's not the following because:
B- visual appeal doesn't really matter when you're getting a job done in terms of programming
C- auto completion doesn't help with debugging it just ensures there's no syntax errors in the first place
D- it could be this, but seasoned coders also use highlighting and autocompletion so I thought A would be a better fit to encompass all coders
E- the editor features doesn't impact the machine at all, it will always be converted to binary so it wouldn't make it easier at all
Complete the method/function so that it converts dash/underscore delimited words into camel casing. The first word within the output should be capitalized only if the original word was capitalized. Specifications Challenge.toCamelCase(str) given a string with dashes and underscore, convert to camel case Parameters str: String - String to be converted Return Value String - String without dashes/underscores and camel cased Examples str Return Value "the-stealth-warrior" "theStealthWarrior" "A-B-C" "ABC"
Answers
Answer:
I am writing a Python program. Let me know if you want the program in some other programming language.
def toCamelCase(str):
string = str.replace("-", " ").replace("_", " ")
string = string.split()
if len(str) == 0:
return str
return string[0] + ''.join(i.capitalize() for i in string[1:])
print(toCamelCase("the-stealth-warrior"))
Explanation:
I will explain the code line by line. First line is the definition of toCamelCase() method with str as an argument. str is basically a string of characters that is to be converted to camel casing in this method.
string = str.replace("-", " ").replace("_", " ") . This statement means the underscore or dash in the entire are removed. After removing the dash and underscore in the string (str), the rest of the string is stored in string variable.
Next the string = string.split() uses split() method that splits or breaks the rest of the string in string variable to a list of all words in this variable.
if len(str) == 0 means if the length of the input string is 0 then return str as it is.
If the length of the str string is not 0 then return string[0] + ''.join(i.capitalize() for i in string[1:]) will execute. Lets take an example of a str to show the working of this statement.
Lets say we have str = "the-stealth-warrior". Now after removal of dash in by replace() method the value stored in string variable becomes the stealth warrior. Now the split() method splits this string into list of three words the, stealth, warrior.
Next return string[0] + ''.join(i.capitalize() for i in string[1:]) has string[0] which is the word. Here join() method is used to join all the items or words in the string together.
Now i variable moves through the string from index 1 and onward and keeps capitalizing the first character of the list of every word present in string variable from that index position to the end. capitalize() method is used for this purpose.
So this means first each first character of each word in the string starting from index position 1 to the end of the string is capitalized and then all the items/words in string are joined by join() method. This means the S of stealth and W of warrior are capitalized and joined as StealthWarrior and added to string[0] = the which returns theStealthWarrior in the output.
You have connected your smartwatch to your wireless speakers. What type of network have you created?
Answers
If you have connected your smartwatch to any form of wireless speakers directly, then you have made a Personal Area Network (PAN).
What is the smartwatch about?A PAN is seen as a form of a type of computer network that is said to be used for communication among devices such as computers, smartphones, tablets, and other devices within the range of an individual person.
Therefore, In this case, your smartwatch as well as wireless speakers are said to be communicating with each other over a short distance, via the use of few meters, and also with the use of wireless technologies such as Bluetooth or Wi-Fi Direct.
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What is the most efficient
form of transportation we
have?
Answers
Answer:
The bicycle is a tremendously efficient means of transportation. In fact cycling is more efficient than any other method of travel--including walking! The one billion bicycles in the world are a testament to its effectiveness
Explanation:
How do you think Galante might respond to a hacker who says “information wants to be free,” a common slogan for those opposed to limiting access to information? Is information like the emails of the Democratic National Committee (DNC) being released by hackers truly “free” (as in, liberated, not no-cost) information?
Answers
Note that Joe Galante, a music industry executive, might argue that the unauthorized release of information, such as the DNC emails, is not a liberation of information, but a violation of privacy and intellectual property rights.
What is the rationale for the above response?Given the above, Joe would argue that the right to access and share information must be balanced with the right to privacy and protection of proprietary information.
Galante would also challenge the oversimplified concept of "information wants to be free" and assert that information creation and distribution requires investment and resources, therefore those who produce and manage information have a right to control its dissemination and use.
Note that Galante might argue that the unauthorized release of information is not an act of liberation, but a breach of privacy and intellectual property rights.
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Select the right order of enforcement of GPOs:
Site -> Domain -> OU; When GPOs collide,they're applied according to site first and domain second. Then, any OUs are applied from leastspecific to most specific.
What can we use to determine what policies will be applied for a given machine?
a. gpupdate
b. control panela c. test domain
Answers
To determine the policies that will be applied for a given machine, you can use the "gpupdate" command. Option a, "gpupdate," is the correct choice. This command ensures that any recent changes or updates to Group Policies are applied to the machine immediately.
The "test domain," is not directly related to determining the applied policies on a given machine. A test domain typically refers to a separate environment set up for testing and experimentation with Active Directory and other related technologies.
The "control panel," typically provides access to various system settings and configuration options on a Windows machine, but it does not directly provide information about the applied Group Policy settings. Hence option (A) is correct answer.
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The owner tells you that in the future, CSM Tech Publishing might need system fault tolerance to ensure that there's little or no downtime because this critical application will eventually be accessed at all times of the day and night. For now, he's just concerned about getting the system up and running. You check the existing server's capacity and determine that the new application's memory and disk requirements will likely exceed the existing server's 4 GB capabilities. The owner explains that there's enough budget for a new server, so you should plan for growth. As an aside, he mentions that because all his employees sign in at about the same time, the time it takes to sign in has been increasing. You need to come up with specifications for a new server. Describe some hardware features you plan to recommend for this new server, in particular the CPU architecture, number of CPUs, amount of RAM, and disk system. Explain your answers.
Answers
Answer:
Follows are the solution to this question:
Explanation:
New useful server specifications can be defined as follows:
Space planning is enough to store units should also be available to handle the current load. The goals shall become converted through strategies Security was its key problem, thus the technology must at least be safeguarded by good chemical stability as well as virus protection.
RAM is also to be improved. Its 8 GB is viewed as good. The amount of redskins would increase performance if they had been increased. Numerous CPUs will be connected to a system for the procedure and is as required.
Its hard drive must be linked to structures with such a temperature of 1-2 TB more than. Besides that, the fault-tolerant equipment, tracking tools, reporting tools, audit tools, and data centers are frequently used.
Information system using the latest information technology has benefited which modern need?.
Answers
Information system using the latest information technology has benefited increased data security.
Give a brief account on data security.Data security is the process of guarding digital data against unwanted access, corruption, and theft across all stages of its life. It is a notion that covers every facet of information security, including the logical security of software programs, administrative and access controls, and the physical security of hardware and storage devices. It also contains the policies and practices of the organization.
Strong data security measures, when correctly executed, will safeguard an organization's information assets from cybercriminal activities but they also guard against insider threats and human mistake, which continue to be among the top causes of data breaches in the present. Data security entails the use of tools and technology that increase an organization's awareness of where its crucial data is located and how it is being used. These solutions ought to be able to implement security measures like encryption, data masking, and redaction of sensitive files, as well as automate reporting to speed up audits and ensure compliance with legal standards.
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What is a font? A)
a typeface on a label
B) a typeface on a poster
C) a typeface on a computer or d) a typeface on a sign
Answers
Answer:
A is most likely the answer
Explanation:
hannes complains that his computer is always giving error messages, the file names and folder names are garbled, and there is an odd noise coming from his computer tower. which hardware device do you suspect is causing the problem?
Answers
Answer:
It could be the hard disk drive (HDD)
Suppose that an attacker has successfully broken into your system, which took a certain amount of effort. they want to access your network, systems, and data repeatedly in the future, without having to break in again, so they setup a ______________ so they can get in again at any time.
Answers
Answer: Backdoor
Explanation:
anyone here play osu! ?
Answers
Answer:
i did but im realy busy now
Explanation:
Answer: I play osu!mania
Explanation:
It is fun
As a Senior Data Manager; explain how best you can manage about 500 units of computer systems to serve 1000 capacity of students for five years with the barest minimum faults but maximum use of both computer system hardware and software.
Answers
As a data manager, to efficiently manage 500 computer systems serving 1000 students over 5 years with minimum faults and maximum utilization, follow these steps.
The steps to be followedProcure reliable hardware, conduct regular maintenance, track assets, provide user training and support, monitor system performance, plan for scalability, ensure data security, and collaborate with IT vendors.
By implementing these strategies, you can effectively manage the systems, minimize faults, and maximize hardware and software usage for student needs.
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Hadoop achieves reliability by replicating the data across multiple hosts and hence does not require ________ storage on hosts. None of the options RAID Operating System ZFS
Answers
Hadoop achieves reliability by replicating the data across multiple hosts and hence does not require RAID storage on hosts. What is Hadoop? Hadoop is an open-source big data framework that was first developed by Apache Software Foundation.
It's used to process huge volumes of data in a distributed computing environment. Hadoop is widely used to handle massive volumes of structured and unstructured data, allowing users to store, manage, and process data in a way that is both cost-effective and scalable.The answer to the given question is RAID. Hadoop accomplishes reliability by storing the data across several computers. Hadoop operates in a distributed computing environment, which implies that it uses many computers.
It is very important to understand that if one of these computers fails, Hadoop can still continue working with the data stored on the remaining computers, thanks to its distributed nature. To do this, Hadoop uses data replication, which copies the data from one computer to many others.
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For computer forensics, ____________ is the task of collecting digital evidence from electronic media.
Answers
For computer forensics, data acquisition is the task of collecting digital evidence from electronic media.
What is data acquisition?Data acquisition is the process of gathering digital evidence from electronic media for computer forensics. Static acquisitions and live acquisitions are the two different categories of data acquisition.
You learn how to carry out static acquisitions from digital material in this chapter. It is the process of digitalization of data from the world.
Thus, data acquisition is the task of collecting digital evidence from electronic media.
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2.0 Quiz
POSSIBLE POINTS 5
While we are working on a document, it is stored in RAM until we hit save to store it on a hard drive. If the power of the computer is turned off before it's
saved, the document is lost. Why is that?
ORAM is volatile storage
O RAM is non-volatile storage
O The hard drive is volatile storage
O The hard drive is non-volatile
Answers
Answer:
RAM is volatile storage
Explanation:
RAM is volatile memory, which means that the information temporarily stored in the module is erased when you restart or shut down your computer. Because the information is stored electrically on transistors, when there is no electric current, the data disappears.